This commit is contained in:
Ian bell
2014-05-15 22:30:54 +02:00
3 changed files with 852 additions and 806 deletions

View File

@@ -25,12 +25,12 @@ public:
// Destructor. No implementation
virtual ~BasePolynomial(){};
protected:
public:
/// Basic checks for coefficient vectors.
/** Starts with only the first coefficient dimension
* and checks the vector length against parameter n. */
bool checkCoefficients(const std::vector<long double> &coefficients, const unsigned int n);
bool checkCoefficients(const std::vector< std::vector<long double> > &coefficients, const unsigned int rows, const unsigned int columns);
bool checkCoefficients(const std::vector<double> &coefficients, const unsigned int n);
bool checkCoefficients(const std::vector< std::vector<double> > &coefficients, const unsigned int rows, const unsigned int columns);
/** Integrating coefficients for polynomials is done by dividing the
* original coefficients by (i+1) and elevating the order by 1
@@ -40,8 +40,8 @@ protected:
* avoids this expensive operation. However, it is included for the
* sake of completeness.
*/
std::vector<long double> integrateCoeffs(const std::vector<long double> &coefficients);
std::vector< std::vector<long double> > integrateCoeffs(const std::vector< std::vector<long double> > &coefficients, bool axis);
std::vector<double> integrateCoeffs(const std::vector<double> &coefficients);
std::vector< std::vector<double> > integrateCoeffs(const std::vector< std::vector<double> > &coefficients, bool axis);
/** Deriving coefficients for polynomials is done by multiplying the
* original coefficients with i and lowering the order by 1.
@@ -49,8 +49,8 @@ protected:
* It is not really deprecated, but untested and therefore a warning
* is issued. Please check this method before you use it.
*/
std::vector<long double> deriveCoeffs(const std::vector<long double> &coefficients);
std::vector< std::vector<long double> > deriveCoeffs(const std::vector< std::vector<long double> > &coefficients, unsigned int axis);
std::vector<double> deriveCoeffs(const std::vector<double> &coefficients);
std::vector< std::vector<double> > deriveCoeffs(const std::vector< std::vector<double> > &coefficients, unsigned int axis);
private:
/** The core of the polynomial wrappers are the different
@@ -65,77 +65,77 @@ private:
/// Simple polynomial function generator. <- Deprecated due to poor performance, use Horner-scheme instead
/** Base function to produce n-th order polynomials
* based on the length of the coefficient vector.
* Starts with only the first coefficient at T^0. */
DEPRECATED(long double simplePolynomial(const std::vector<long double> &coefficients, long double T));
DEPRECATED(long double simplePolynomial(const std::vector<std::vector<long double> > &coefficients, long double x, long double T));
* Starts with only the first coefficient at x^0. */
DEPRECATED(double simplePolynomial(const std::vector<double> &coefficients, double x));
DEPRECATED(double simplePolynomial(const std::vector<std::vector<double> > &coefficients, double x, double y));
/// Simple integrated polynomial function generator.
/** Base function to produce integrals of n-th order polynomials based on
* the length of the coefficient vector.
* Starts with only the first coefficient at T^0 */
///Indefinite integral in T-direction
long double simplePolynomialInt(const std::vector<long double> &coefficients, long double T);
///Indefinite integral in T-direction only
long double simplePolynomialInt(const std::vector<std::vector<long double> > &coefficients, long double x, long double T);
* Starts with only the first coefficient at x^0 */
///Indefinite integral in x-direction
double simplePolynomialInt(const std::vector<double> &coefficients, double x);
///Indefinite integral in y-direction only
double simplePolynomialInt(const std::vector<std::vector<double> > &coefficients, double x, double y);
/// Simple integrated polynomial function generator divided by independent variable.
/** Base function to produce integrals of n-th order
* polynomials based on the length of the coefficient
* vector. Starts with only the first coefficient at T^0 */
* vector. Starts with only the first coefficient at x^0 */
///Indefinite integral of a polynomial divided by its independent variable
long double simpleFracInt(const std::vector<long double> &coefficients, long double T);
double simpleFracInt(const std::vector<double> &coefficients, double x);
///Indefinite integral of a polynomial divided by its 2nd independent variable
long double simpleFracInt(const std::vector<std::vector<long double> > &coefficients, long double x, long double T);
double simpleFracInt(const std::vector<std::vector<double> > &coefficients, double x, double y);
/** Simple integrated centred(!) polynomial function generator divided by independent variable.
* We need to rewrite some of the functions in order to
* use central fit. Having a central temperature Tbase
* use central fit. Having a central temperature xbase
* allows for a better fit, but requires a different
* formulation of the fracInt function group. Other
* functions are not affected.
* Starts with only the first coefficient at T^0 */
* Starts with only the first coefficient at x^0 */
///Helper function to calculate the D vector:
long double factorial(long double nValue);
long double binom(long double nValue, long double nValue2);
std::vector<long double> fracIntCentralDvector(int m, long double T, long double Tbase);
double factorial(double nValue);
double binom(double nValue, double nValue2);
std::vector<double> fracIntCentralDvector(int m, double x, double xbase);
///Indefinite integral of a centred polynomial divided by its independent variable
long double fracIntCentral(const std::vector<long double> &coefficients, long double T, long double Tbase);
double fracIntCentral(const std::vector<double> &coefficients, double x, double xbase);
/// Horner function generator implementations
/** Represent polynomials according to Horner's scheme.
* This avoids unnecessary multiplication and thus
* speeds up calculation.
*/
long double baseHorner(const std::vector<long double> &coefficients, long double T);
long double baseHorner(const std::vector< std::vector<long double> > &coefficients, long double x, long double T);
///Indefinite integral in T-direction
long double baseHornerInt(const std::vector<long double> &coefficients, long double T);
///Indefinite integral in T-direction only
long double baseHornerInt(const std::vector<std::vector<long double> > &coefficients, long double x, long double T);
double baseHorner(const std::vector<double> &coefficients, double x);
double baseHorner(const std::vector< std::vector<double> > &coefficients, double x, double y);
///Indefinite integral in x-direction
double baseHornerInt(const std::vector<double> &coefficients, double x);
///Indefinite integral in y-direction only
double baseHornerInt(const std::vector<std::vector<double> > &coefficients, double x, double y);
///Indefinite integral of a polynomial divided by its independent variable
long double baseHornerFracInt(const std::vector<long double> &coefficients, long double T);
double baseHornerFracInt(const std::vector<double> &coefficients, double x);
///Indefinite integral of a polynomial divided by its 2nd independent variable
long double baseHornerFracInt(const std::vector<std::vector<long double> > &coefficients, long double x, long double T);
double baseHornerFracInt(const std::vector<std::vector<double> > &coefficients, double x, double y);
/** Alternatives
* Simple functions that heavily rely on other parts of this file.
* We still need to check which combinations yield the best
* performance.
*/
///Derivative in T-direction
long double deriveIn2Steps(const std::vector<long double> &coefficients, long double T);
///Derivative in terms of x(axis=true) or T(axis=false).
long double deriveIn2Steps(const std::vector< std::vector<long double> > &coefficients, long double x, long double T, bool axis);
///Indefinite integral in T-direction
long double integrateIn2Steps(const std::vector<long double> &coefficients, long double T);
///Indefinite integral in terms of x(axis=true) or T(axis=false).
long double integrateIn2Steps(const std::vector< std::vector<long double> > &coefficients, long double x, long double T, bool axis);
///Indefinite integral in T-direction of a polynomial divided by its independent variable
long double fracIntIn2Steps(const std::vector<long double> &coefficients, long double T);
///Indefinite integral in T-direction of a polynomial divided by its 2nd independent variable
long double fracIntIn2Steps(const std::vector<std::vector<long double> > &coefficients, long double x, long double T);
///Derivative in x-direction
double deriveIn2Steps(const std::vector<double> &coefficients, double x); // TODO: Check results!
///Derivative in terms of x(axis=true) or y(axis=false).
double deriveIn2Steps(const std::vector< std::vector<double> > &coefficients, double x, double y, bool axis); // TODO: Check results!
///Indefinite integral in x-direction
double integrateIn2Steps(const std::vector<double> &coefficients, double x);
///Indefinite integral in terms of x(axis=true) or y(axis=false).
double integrateIn2Steps(const std::vector< std::vector<double> > &coefficients, double x, double y, bool axis);
///Indefinite integral in x-direction of a polynomial divided by its independent variable
double fracIntIn2Steps(const std::vector<double> &coefficients, double x);
///Indefinite integral in y-direction of a polynomial divided by its 2nd independent variable
double fracIntIn2Steps(const std::vector<std::vector<double> > &coefficients, double x, double y);
///Indefinite integral of a centred polynomial divided by its 2nd independent variable
long double fracIntCentral2Steps(const std::vector<std::vector<long double> > &coefficients, long double x, long double T, long double Tbase);
double fracIntCentral2Steps(const std::vector<std::vector<double> > &coefficients, double x, double y, double ybase);
public:
/** Here we define the functions that should be used by the
@@ -146,491 +146,381 @@ public:
*/
/** Everything related to the normal polynomials goes in this
* section, holds functions for both evaluation and solving
* of polynomials.
* section, holds all the functions for evaluating polynomials.
*/
/// Evaluates a one-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input
inline long double polyval(const std::vector<long double> &coefficients, long double x){
/// @param x double value that represents the current input
virtual inline double polyval(const std::vector<double> &coefficients, double x){
return baseHorner(coefficients,x);
}
/// Evaluates a two-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param y long double value that represents the current input in the 2nd dimension
inline long double polyval(const std::vector< std::vector<long double> > &coefficients, long double x, long double y){
/// @param x double value that represents the current input in the 1st dimension
/// @param y double value that represents the current input in the 2nd dimension
virtual inline double polyval(const std::vector< std::vector<double> > &coefficients, double x, double y){
return baseHorner(coefficients,x,y);
}
/** Everything related to the integrated polynomials goes in this
* section, holds functions for both evaluation and solving
* of polynomials.
* section, holds all the functions for evaluating polynomials.
*/
/// Evaluates the indefinite integral of a one-dimensional polynomial
/// @param coefficients vector containing the ordered coefficients
/// @param T long double value that represents the current input
inline long double polyint(const std::vector<long double> &coefficients, long double T){
return baseHornerInt(coefficients,T);
/// @param x double value that represents the current input
virtual inline double polyint(const std::vector<double> &coefficients, double x){
return baseHornerInt(coefficients,x);
}
/// Evaluates the indefinite integral of a two-dimensional polynomial along the 2nd axis (T)
/// Evaluates the indefinite integral of a two-dimensional polynomial along the 2nd axis (y)
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param T long double value that represents the current input in the 2nd dimension
inline long double polyint(const std::vector< std::vector<long double> > &coefficients, long double x, long double T){
return baseHornerInt(coefficients,x,T);
/// @param x double value that represents the current input in the 1st dimension
/// @param y double value that represents the current input in the 2nd dimension
virtual inline double polyint(const std::vector< std::vector<double> > &coefficients, double x, double y){
return baseHornerInt(coefficients,x,y);
}
/** Everything related to the derived polynomials goes in this
* section, holds functions for both evaluation and solving
* of polynomials.
* section, holds all the functions for evaluating polynomials.
*/
/// Evaluates the derivative of a one-dimensional polynomial
/// @param coefficients vector containing the ordered coefficients
/// @param T long double value that represents the current input
inline long double polyder(const std::vector<long double> &coefficients, long double T){
return deriveIn2Steps(coefficients,T);
/// @param x double value that represents the current input
virtual inline double polyder(const std::vector<double> &coefficients, double x){
return deriveIn2Steps(coefficients,x);
}
/// Evaluates the derivative of a two-dimensional polynomial along the 2nd axis (T)
/// Evaluates the derivative of a two-dimensional polynomial along the 2nd axis (y)
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param T long double value that represents the current input in the 2nd dimension
inline long double polyder(const std::vector< std::vector<long double> > &coefficients, long double x, long double T){
return deriveIn2Steps(coefficients,x,T,false);
/// @param x double value that represents the current input in the 1st dimension
/// @param y double value that represents the current input in the 2nd dimension
virtual inline double polyder(const std::vector< std::vector<double> > &coefficients, double x, double y){
return deriveIn2Steps(coefficients,x,y,false);
}
/** Everything related to the polynomials divided by one variable goes in this
* section, holds functions for both evaluation and solving
* of polynomials.
* section, holds all the functions for evaluating polynomials.
*/
/// Evaluates the indefinite integral of a one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param T long double value that represents the current position
inline long double polyfracval(const std::vector<long double> &coefficients, long double T){
return baseHornerFracInt(coefficients,T);
/// @param x double value that represents the current position
virtual inline double polyfracval(const std::vector<double> &coefficients, double x){
return baseHornerFracInt(coefficients,x);
}
/// Evaluates the indefinite integral of a two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param T long double value that represents the current input in the 2nd dimension
inline long double polyfracval(const std::vector< std::vector<long double> > &coefficients, long double x, long double T){
return baseHornerFracInt(coefficients,x,T);
/// @param x double value that represents the current input in the 1st dimension
/// @param y double value that represents the current input in the 2nd dimension
virtual inline double polyfracval(const std::vector< std::vector<double> > &coefficients, double x, double y){
return baseHornerFracInt(coefficients,x,y);
}
/** Everything related to the integrated polynomials divided by one variable goes in this
* section, holds all the functions for solving polynomials.
*/
/// Evaluates the indefinite integral of a one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param T long double value that represents the current position
inline long double polyfracint(const std::vector<long double> &coefficients, long double T){
return baseHornerFracInt(coefficients,T);
/// @param x double value that represents the current position
virtual inline double polyfracint(const std::vector<double> &coefficients, double x){
return baseHornerFracInt(coefficients,x);
}
/// Evaluates the indefinite integral of a two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param T long double value that represents the current input in the 2nd dimension
inline long double polyfracint(const std::vector< std::vector<long double> > &coefficients, long double x, long double T){
return baseHornerFracInt(coefficients,x,T);
/// @param x double value that represents the current input in the 1st dimension
/// @param y double value that represents the current input in the 2nd dimension
virtual inline double polyfracint(const std::vector< std::vector<double> > &coefficients, double x, double y){
return baseHornerFracInt(coefficients,x,y);
}
/// Evaluates the indefinite integral of a centred one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param T long double value that represents the current position
/// @param Tbase central temperature for fitted function
inline long double polyfracintcentral(const std::vector<long double> &coefficients, long double T, long double Tbase){
return fracIntCentral(coefficients,T,Tbase);
/// @param x double value that represents the current position
/// @param xbase central temperature for fitted function
virtual inline double polyfracintcentral(const std::vector<double> &coefficients, double x, double xbase){
return fracIntCentral(coefficients,x,xbase);
}
/// Evaluates the indefinite integral of a centred two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param T long double value that represents the current input in the 2nd dimension
/// @param Tbase central temperature for fitted function
inline long double polyfracintcentral(const std::vector< std::vector<long double> > &coefficients, long double x, long double T, long double Tbase){
return fracIntCentral2Steps(coefficients,x,T,Tbase);
/// @param x double value that represents the current input in the 1st dimension
/// @param y double value that represents the current input in the 2nd dimension
/// @param ybase central temperature for fitted function
virtual inline double polyfracintcentral(const std::vector< std::vector<double> > &coefficients, double x, double y, double ybase){
return fracIntCentral2Steps(coefficients,x,y,ybase);
}
/** Everything related to the derived polynomials divided by one variable goes in this
* section, holds all the functions for solving polynomials.
*/
/// Evaluates the derivative of a one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current position
virtual inline double polyfracder(const std::vector<double> &coefficients, double x){
throw CoolProp::NotImplementedError("Derivatives of polynomials divided by their independent variable have not been implemented."); // TODO: Implement polyfracder1D
}
/// Evaluates the derivative of a two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param y double value that represents the current input in the 2nd dimension
virtual inline double polyfracder(const std::vector< std::vector<double> > &coefficients, double x, double y){
throw CoolProp::NotImplementedError("Derivatives of polynomials divided by their independent variable have not been implemented."); // TODO: Implement polyfracder2D
}
/// Evaluates the derivative of a centred one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current position
/// @param xbase central temperature for fitted function
virtual inline double polyfracdercentral(const std::vector<double> &coefficients, double x, double xbase){
throw CoolProp::NotImplementedError("Derivatives of polynomials divided by their independent variable have not been implemented."); // TODO: Implement polyfracdercentral1D
}
/// Evaluates the derivative of a centred two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param y double value that represents the current input in the 2nd dimension
/// @param ybase central temperature for fitted function
virtual inline double polyfracdercentral(const std::vector< std::vector<double> > &coefficients, double x, double y, double ybase){
throw CoolProp::NotImplementedError("Derivatives of polynomials divided by their independent variable have not been implemented."); // TODO: Implement polyfracdercentral2D
}
};
/** Implements the function wrapper interface and can be
* used by the solvers.
* TODO: Make multidimensional
*/
class PolyResidual : public FuncWrapper1D {
protected:
enum dims {i1D, i2D};
/// Object that evaluates the equation
BasePolynomial poly;
/// Current output value
double output, firstDim;
int dim;
std::vector< std::vector<double> > coefficients;
private:
PolyResidual();
public:
PolyResidual(const std::vector<double> &coefficients, double y);
PolyResidual(const std::vector< std::vector<double> > &coefficients, double x, double z);
virtual ~PolyResidual(){};
virtual double call(double x);
virtual double deriv(double x);
};
class PolyIntResidual : public PolyResidual {
public:
virtual double call(double x);
virtual double deriv(double x);
};
class PolyFracIntResidual : public PolyResidual {
public:
virtual double call(double x);
virtual double deriv(double x);
};
class PolyDerResidual : public PolyResidual {
public:
virtual double call(double x);
virtual double deriv(double x);
};
/** Implements the same public functions as the
* but solves the polynomial for the given value
* instead of evaluating it.
* TODO: This class does not check for bijective
* polynomials and is therefore a little
* fragile.
*/
class PolynomialSolver : public BasePolynomial{
private:
enum solvers {iNewton, iBrent};
int uses;
double guess, min, max;
double macheps, tol;
int maxiter;
public:
// Constructor
PolynomialSolver();
// Destructor. No implementation
virtual ~PolynomialSolver(){};
public:
/** Here we redefine the functions that solve the polynomials.
* These implementations all use the base class to evaluate
* the polynomial during the solution process.
*/
/** Everything related to the normal polynomials goes in this
* section, holds all the functions for solving polynomials.
*/
/// Solves a one-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param y double value that represents the current input
virtual double polyval(const std::vector<double> &coefficients, double y);
/// Solves a two-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param z double value that represents the current output
virtual double polyval(const std::vector< std::vector<double> > &coefficients, double x, double z);
/** Everything related to the integrated polynomials goes in this
* section, holds all the functions for solving polynomials.
*/
/// Solves the indefinite integral of a one-dimensional polynomial
/// @param coefficients vector containing the ordered coefficients
/// @param y double value that represents the current output
virtual double polyint(const std::vector<double> &coefficients, double y);
/// Solves the indefinite integral of a two-dimensional polynomial along the 2nd axis (y)
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param z double value that represents the current output
virtual double polyint(const std::vector< std::vector<double> > &coefficients, double x, double z);
/** Everything related to the derived polynomials goes in this
* section, holds all the functions for solving polynomials.
*/
/// Solves the derivative of a one-dimensional polynomial
/// @param coefficients vector containing the ordered coefficients
/// @param y double value that represents the current output
virtual double polyder(const std::vector<double> &coefficients, double y);
/// Solves the derivative of a two-dimensional polynomial along the 2nd axis (y)
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param z double value that represents the current output
virtual double polyder(const std::vector< std::vector<double> > &coefficients, double x, double z);
/** Everything related to the polynomials divided by one variable goes in this
* section, holds all the functions for solving polynomials.
*/
/// Solves the indefinite integral of a one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param y double value that represents the current output
virtual double polyfracval(const std::vector<double> &coefficients, double y);
/// Solves the indefinite integral of a two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param z double value that represents the current output
virtual double polyfracval(const std::vector< std::vector<double> > &coefficients, double x, double z);
/** Everything related to the integrated polynomials divided by one variable goes in this
* section, holds all the functions for solving polynomials.
*/
/// Solves the indefinite integral of a one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param y double value that represents the current output
virtual double polyfracint(const std::vector<double> &coefficients, double y);
/// Solves the indefinite integral of a two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param z double value that represents the current output
virtual double polyfracint(const std::vector< std::vector<double> > &coefficients, double x, double z);
/// Solves the indefinite integral of a centred one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param y double value that represents the current output
/// @param xbase central x-value for fitted function
virtual double polyfracintcentral(const std::vector<double> &coefficients, double y, double xbase);
/// Solves the indefinite integral of a centred two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param z double value that represents the current output
/// @param ybase central y-value for fitted function
virtual double polyfracintcentral(const std::vector< std::vector<double> > &coefficients, double x, double z, double ybase);
/** Everything related to the derived polynomials divided by one variable goes in this
* section, holds all the functions for solving polynomials.
*/
/// Solves the derivative of a one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param y double value that represents the current output
virtual double polyfracder(const std::vector<double> &coefficients, double y);
/// Solves the derivative of a two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param z double value that represents the current output
virtual double polyfracder(const std::vector< std::vector<double> > &coefficients, double x, double z);
/// Solves the derivative of a centred one-dimensional polynomial divided by its independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param y double value that represents the current output
/// @param xbase central x-value for fitted function
virtual double polyfracdercentral(const std::vector<double> &coefficients, double y, double xbase);
/// Solves the derivative of a centred two-dimensional polynomial divided by its 2nd independent variable
/// @param coefficients vector containing the ordered coefficients
/// @param x double value that represents the current input in the 1st dimension
/// @param z double value that represents the current output
/// @param ybase central y-value for fitted function
virtual double polyfracdercentral(const std::vector< std::vector<double> > &coefficients, double x, double z, double ybase);
/** Set the solvers and updates either the guess values or the
* boundaries for the variable to solve for.
*/
/// Sets the guess value for the Newton solver and enables it.
/// @param guess double value that represents the guess value
virtual void setGuess(double guess);
/// Sets the limits for the Brent solver and enables it.
/// @param min double value that represents the lower boundary
/// @param max double value that represents the upper boundary
virtual void setLimits(double min, double max);
/// Solves the equations based on previously defined parameters.
/// @param min double value that represents the lower boundary
/// @param max double value that represents the upper boundary
virtual double solve(PolyResidual &res);
};
/// The base class for exponential functions
class BaseExponential{
protected:
BasePolynomial poly;
bool DEBUG;
public:
BaseExponential();
virtual ~BaseExponential(){};
public:
/// Evaluates an exponential function for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param T long double value that represents the current input
/// @param x double value that represents the current input
/// @param n int value that determines the kind of exponential function
long double expval(const std::vector<long double> &coefficients, long double T, int n);
double expval(const std::vector<double> &coefficients, double x, int n);
/// Evaluates an exponential function for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param T long double value that represents the current input in the 2nd dimension
/// @param x double value that represents the current input in the 1st dimension
/// @param y double value that represents the current input in the 2nd dimension
/// @param n int value that determines the kind of exponential function
long double expval(const std::vector< std::vector<long double> > &coefficients, long double x, long double T, int n);
};
/// The classes for Polynomials
class PolynomialImpl1D : public BasePolynomial{
protected:
std::vector<long double> coefficients;
/// A nested class that is used by the solvers to calculate
/// residuals and derivatives during the solution process.
class Residual : public FuncWrapper1D {
private:
PolynomialImpl1D *poly;
long double y;
Residual();
public:
Residual(PolynomialImpl1D *poly, long double y);
virtual double call(double x);
virtual double deriv(double x);
};
class ResidualInt : public Residual {
public:
virtual double call(double x);
virtual double deriv(double x);
};
class ResidualDer : public Residual {
public:
virtual double call(double x);
virtual double deriv(double x);
};
private:
PolynomialImpl1D();
public:
PolynomialImpl1D(const std::vector<long double> &coefficients);
virtual ~PolynomialImpl1D(){};
/// Evaluates a one-dimensional polynomial for the given coefficients
/// @param x long double value that represents the current input
virtual long double eval(long double x);
/// Evaluates the indefinite integral of a one-dimensional polynomial
/// @param x long double value that represents the current input
virtual long double integ(long double x);
/// Evaluates the derivative of a one-dimensional polynomial
/// @param x long double value that represents the current input
virtual long double deriv(long double x);
/// Solves a one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param x0 long double value that represents the first guess for x
virtual long double solve(long double y, long double x0);
/// Solves a one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solve(long double y, long double xmin, long double xmax);
/// Solves an integrated one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param x0 long double value that represents the first guess for x
virtual long double solveInt(long double y, long double x0);
/// Solves an integrated one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solveInt(long double y, long double xmin, long double xmax);
/// Solves the derivative of a one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param x0 long double value that represents the first guess for x
virtual long double solveDer(long double y, long double x0);
/// Solves the derivative of a one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solveDer(long double y, long double xmin, long double xmax);
};
class PolynomialImpl2D : public BasePolynomial{
protected:
std::vector< std::vector<long double> > coefficients;
/// A nested class that is used by the solvers to calculate
/// residuals and derivatives during the solution process.
class Residual : public FuncWrapper1D {
private:
PolynomialImpl2D *poly;
long double x, y;
Residual();
public:
Residual(PolynomialImpl2D *poly, long double y, long double x);
virtual double call(double z);
virtual double deriv(double z);
};
class ResidualInt : public Residual {
public:
virtual double call(double z);
virtual double deriv(double z);
};
class ResidualDer : public Residual {
public:
virtual double call(double z);
virtual double deriv(double z);
};
private:
PolynomialImpl2D();
public:
PolynomialImpl2D(const std::vector< std::vector<long double> > &coefficients);
virtual ~PolynomialImpl2D(){};
/// Evaluates a two-dimensional polynomial for the given coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param z long double value that represents the current input in the 2nd dimension
virtual long double eval(long double x, long double z);
/// Evaluates the indefinite integral of a two-dimensional polynomial along the 2nd axis (z)
/// @param x long double value that represents the current input in the 1st dimension
/// @param z long double value that represents the current input in the 2nd dimension
virtual long double integ(long double x, long double z);
/// Evaluates the derivative of a two-dimensional polynomial along the 2nd axis (z)
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param z long double value that represents the current input in the 2nd dimension
virtual long double deriv(long double x, long double z);
/// Solves a two-dimensional polynomial for the 2nd input (z)
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param z0 long double value that represents the first guess for z
virtual long double solve(long double y, long double x, long double z0);
/// Solves a two-dimensional polynomial for the 2nd input (z)
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param zmin long double value that represents the lower limit for z
/// @param zmax long double value that represents the upper limit for z
virtual long double solve(long double y, long double x, long double zmin, long double zmax);
/// Solves an integrated two-dimensional polynomial for the 2nd input (z)
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param z0 long double value that represents the first guess for z
virtual long double solveInt(long double y, long double x, long double z0);
/// Solves an integrated two-dimensional polynomial for the 2nd input (z)
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param zmin long double value that represents the lower limit for z
/// @param zmax long double value that represents the upper limit for z
virtual long double solveInt(long double y, long double x, long double zmin, long double zmax);
/// Solves the derivative of a two-dimensional polynomial for the 2nd input (z)
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param z0 long double value that represents the first guess for z
virtual long double solveDer(long double y, long double x, long double z0);
/// Solves the derivative of a two-dimensional polynomial for the 2nd input (z)
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param zmin long double value that represents the lower limit for z
/// @param zmax long double value that represents the upper limit for z
virtual long double solveDer(long double y, long double x, long double zmin, long double zmax);
};
class PolynomialFrac1D : public PolynomialImpl1D{
private:
PolynomialFrac1D();
public:
PolynomialFrac1D(const std::vector<long double> &coefficients);
virtual ~PolynomialFrac1D(){};
/// Evaluates a one-dimensional polynomial for the given coefficients
/// @param x long double value that represents the current input
virtual long double eval(long double x);
/// Evaluates the indefinite integral of a one-dimensional polynomial
/// @param x long double value that represents the current input
virtual long double integ(long double x);
/// Evaluates the derivative of a one-dimensional polynomial
/// @param x long double value that represents the current input
virtual long double deriv(long double x);
/// Solves a one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param x0 long double value that represents the first guess for x
virtual long double solve(long double y, long double x0);
/// Solves a one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solve(long double y, long double xmin, long double xmax);
/// Solves an integrated one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param x0 long double value that represents the first guess for x
virtual long double solveInt(long double y, long double x0);
/// Solves an integrated one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solveInt(long double y, long double xmin, long double xmax);
// virtual long double solveIntCentral(long double y, long double xBase, long double x0); // TODO: implement solveIntCentral with x0
/// Solves an integrated one-dimensional polynomial
/// @param y long double value that represents the current function output
/// @param xBase long double value that represents the central value for x
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solveIntCentral(long double y, long double xBase, long double xmin, long double xmax);
/// Solves the derivative of a one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param x0 long double value that represents the first guess for x
virtual long double solveDer(long double y, long double x0);
/// Solves the derivative of a one-dimensional polynomial for the given coefficients
/// @param y long double value that represents the current function output
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solveDer(long double y, long double xmin, long double xmax);
// virtual long double solveDerCentral(long double y, long double xBase, long double x0); // TODO: implement solveDerCentral with x0
// virtual long double solveDerCentral(long double y, long double xBase, long double xmin, long double xmax); // TODO: implement solveDerCentral with xmin, xmax
/// Solves a one-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param x0 long double value that represents the first guess for x
virtual long double solve(const std::vector<long double> &coefficients, long double y, long double x0);
/// Solves a two-dimensional polynomial for the 2nd input (z)
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param z0 long double value that represents the first guess for z
virtual long double solve(const std::vector< std::vector<long double> > &coefficients, long double y, long double x, long double z0);
/// Solves a one-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solve(const std::vector<long double> &coefficients, long double y, long double xmin, long double xmax);
/// Solves a two-dimensional polynomial for the 2nd input (z)
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param zmin long double value that represents the lower limit for z
/// @param zmax long double value that represents the upper limit for z
virtual long double solve(const std::vector< std::vector<long double> > &coefficients, long double y, long double x, long double zmin, long double zmax);
/// Solves an integrated one-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param x0 long double value that represents the first guess for x
virtual long double solveInt(const std::vector<long double> &coefficients, long double y, long double x0);
/// Solves an integrated two-dimensional polynomial for the 2nd input (z)
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param z0 long double value that represents the first guess for z
virtual long double solveInt(const std::vector< std::vector<long double> > &coefficients, long double y, long double x, long double z0);
/// Solves an integrated one-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solveInt(const std::vector<long double> &coefficients, long double y, long double xmin, long double xmax);
/// Solves an integrated two-dimensional polynomial for the 2nd input (z)
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param zmin long double value that represents the lower limit for z
/// @param zmax long double value that represents the upper limit for z
virtual long double solveInt(const std::vector< std::vector<long double> > &coefficients, long double y, long double x, long double zmin, long double zmax);
/// Solves the derivative of a one-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param x0 long double value that represents the first guess for x
virtual long double solveDer(const std::vector<long double> &coefficients, long double y, long double x0);
/// Solves the derivative of a one-dimensional polynomial for the given coefficients
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param xmin long double value that represents the lower limit for x
/// @param xmax long double value that represents the upper limit for x
virtual long double solveDer(const std::vector<long double> &coefficients, long double y, long double xmin, long double xmax);
/// Solves the derivative of a two-dimensional polynomial for the 2nd input (z)
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param z0 long double value that represents the first guess for z
virtual long double solveDer(const std::vector< std::vector<long double> > &coefficients, long double y, long double x, long double z0);
/// Solves the derivative of a two-dimensional polynomial for the 2nd input (z)
/// @param coefficients vector containing the ordered coefficients
/// @param y long double value that represents the current function output
/// @param x long double value that represents the current input in the 1st dimension
/// @param zmin long double value that represents the lower limit for z
/// @param zmax long double value that represents the upper limit for z
virtual long double solveDer(const std::vector< std::vector<long double> > &coefficients, long double y, long double x, long double zmin, long double zmax);
// virtual long double solveDerCentral(long double y, long double x, long double zBase, long double z0); // TODO: implement solveDerCentral with z0
// virtual long double solveDerCentral(long double y, long double x, long double zBase, long double zmin, long double zmax); // TODO: implement solveDerCentral with zmin, zmax
};
class PolynomialFrac2D : public PolynomialImpl2D{
private:
PolynomialFrac2D();
public:
PolynomialFrac2D(const std::vector< std::vector<long double> > &coefficients);
virtual ~PolynomialFrac2D(){};
/// Evaluates a two-dimensional polynomial for the given coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param z long double value that represents the current input in the 2nd dimension
virtual long double eval(long double x, long double z);
/// Evaluates the indefinite integral of a two-dimensional polynomial along the 2nd axis (z)
/// @param x long double value that represents the current input in the 1st dimension
/// @param z long double value that represents the current input in the 2nd dimension
virtual long double integ(long double x, long double z);
/// Evaluates the indefinite integral of a two-dimensional polynomial along the 2nd axis (z)
/// @param x long double value that represents the current input in the 1st dimension
/// @param z long double value that represents the current input in the 2nd dimension
/// @param zBase long double value that represents the central value for z
virtual long double integCentral(long double x, long double z, long double zBase);
/// Evaluates the derivative of a two-dimensional polynomial along the 2nd axis (z)
/// @param coefficients vector containing the ordered coefficients
/// @param x long double value that represents the current input in the 1st dimension
/// @param z long double value that represents the current input in the 2nd dimension
virtual long double deriv(long double x, long double z);
double expval(const std::vector< std::vector<double> > &coefficients, double x, double y, int n);
};