RedHat 9 (Linux i386) - man page for erfc (redhat section 3)

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ERF(3)				    Linux Programmer's Manual				   ERF(3)

NAME
       erf, erfc - error function and complementary error function

SYNOPSIS
       #include <math.h>

       double erf(double x);

       double erfc(double x);

DESCRIPTION
       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).

CONFORMING TO
       SVID 3, BSD 4.3

SEE ALSO
       exp(3)

BSD					    1993-06-25					   ERF(3)
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