CPnumerics.cpp File Reference

#include "CPnumerics.h"
#include "MatrixMath.h"
#include <unsupported/Eigen/Polynomials>

Go to the source code of this file.

Functions
double	root_sum_square (const std::vector< double > &x)
double	interp1d (const std::vector< double > *x, const std::vector< double > *y, double x0)
double	powInt (double x, int y)
void	MatInv_2 (double A[2][2], double B[2][2])
void	solve_cubic (double a, double b, double c, double d, int &N, double &x0, double &x1, double &x2)
	Solve a cubic with coefficients in decreasing order. More...
void	solve_quartic (double a, double b, double c, double d, double e, int &N, double &x0, double &x1, double &x2, double &x3)

Function Documentation

interp1d()

double interp1d	(	const std::vector< double > *	x,
		const std::vector< double > *	y,
		double	x0
	)

Definition at line 12 of file CPnumerics.cpp.

MatInv_2()

void MatInv_2	(	double	A[2][2],
		double	B[2][2]
	)

Definition at line 70 of file CPnumerics.cpp.

powInt()

double powInt	(	double	x,
		int	y
	)

Definition at line 39 of file CPnumerics.cpp.

root_sum_square()

double root_sum_square

(

const std::vector< double > &

x

)

Definition at line 5 of file CPnumerics.cpp.

solve_cubic()

void solve_cubic	(	double	a,
		double	b,
		double	c,
		double	d,
		int &	N,
		double &	x0,
		double &	x1,
		double &	x2
	)

Solve a cubic with coefficients in decreasing order.

0 = ax^3 + b*x^2 + c*x + d

Parameters

a	The x^3 coefficient
b	The x^2 coefficient
c	The x^1 coefficient
d	The x^0 coefficient
N	The number of unique real solutions found
x0	The first solution found
x1	The second solution found
x2	The third solution found

Definition at line 81 of file CPnumerics.cpp.

solve_quartic()

void solve_quartic	(	double	a,
		double	b,
		double	c,
		double	d,
		double	e,
		int &	N,
		double &	x0,
		double &	x1,
		double &	x2,
		double &	x3
	)

Definition at line 133 of file CPnumerics.cpp.