NAME | SYNOPSIS | DESCRIPTION | ATTRIBUTES | SEE ALSO
#include <math.h>double erf(double x);
These functions calculate the error function of x .
The erf function calculates the error function of x; where
erf(x) = 2/sqrt(pi)*integral from 0 to x of exp(-t*t) dt.
The erfc function calculates the complementary error function of x ; that is, erfc subtracts the result of the error function erf(x) from 1.0. This is useful when x is a large value, as decimal places can be lost.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
Interface Stability | Evolving |
NAME | SYNOPSIS | DESCRIPTION | ATTRIBUTES | SEE ALSO