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solaris:erfc.3m

erfc


NAME

erfc, erfcf, erfcl - complementary error function

SYNOPSIS

c99 [ flag… ] file-lm [ library… ]
#include <math.h>

double erfc(double x);

float erfcf(float x);

long double erfcl(long double x);

DESCRIPTION

These function compute the complementary error function 1.0 − erf(x).

RETURN VALUES

Upon successful completion, these functions return the value of the complementary error function.

If x is NaN, a NaN is returned.

If x is ±0, +1 is returned.

If x is −Inf, +2 is returned.

If x is +Inf, 0 is returned.

ERRORS

No errors are defined.

USAGE

The erfc() function is provided because of the extreme loss of relative accuracy if erf(x) is called for large x and the result subtracted from 1.0.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:

SEE ALSO

math.h(3HEAD), erf(3M), isnan(3M), attributes(7), standards(7)


solaris/erfc.3m.txt · Last modified: 2023/07/19 08:58 by A User Not Logged in