mathtools.h

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#pragma once
#include <cstddef>
 
 
void GaussChebyshevI_unit(size_t N, double *nodes, double *weights);
 
 
void GaussChebyshevII_unit(size_t N, double *nodes, double *weights);
 
 
void GaussLegendre_unit(size_t N, double *nodes, double *weights);
 
 
void LegendreP_order_N(int N, double x, double &y, double &dy);
 
 
void transform_GaussQuad_unit2x0inf(double x0, size_t N, double *nodes, double *weights);
 
 
void transform_GaussQuad_unit2x0x1(double x0, double x1, size_t N, double *nodes, double *weights);
 
 
void transform_GaussQuad_unit2inf(size_t N, double *nodes, double *weights);
 
 
void transform_GaussQuad_unit2minfx0(double x0, size_t N, double *nodes, double *weights);