GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
RedHat 6.2(Zoot) |
|
 |
erf(3) |
 |
erf, erfc − error function and complementary error function
#include <math.h>
double erf(double x);
double erfc (double x);
The
erf() function returns the error function of
x; defined as
erf(x) = 2/sqrt(pi)* integral from 0 to x of exp(-t*t)
dt
The erfc() function returns the complementary error function of x, that is 1.0 - erf(x).
SVID 3, BSD 4.3
exp(3)
|
erf(3) | |