src/main/cpp/numerics4cpp/special/erf.h File Reference

#include "../numerics.h"

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Functions
double	erf (double x)
double	erfc (double x)
double	inverse_erf (double y)

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Detailed Description

Implementations for several functions related to the error function.

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Function Documentation

double erf

(

double

x

)

Returns the error function erf(x).

References:

1. Eric W. Weisstein. "Erf." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Erf.html

Parameters:

x

the evaluation point.

Returns:

erf(x)

double erfc

(

double

x

)

Returns the complementary error function erfc(x).

References:

1. Eric W. Weisstein. "Erfc." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Erfc.html

Parameters:

x

the evaluation point.

Returns:

erfc(x)

double inverse_erf

(

double

y

)

Returns the inverse error function erf^-1(x).

References:

1. Eric W. Weisstein. "Erf." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Erf.html

Parameters:

y

the evaluation point.

Returns:

the value x, such that erf(x) == y.

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