erfcl(3m) [opensolaris man page]
erfc(3M) Mathematical Library Functions erfc(3M) 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(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
erf(3M), isnan(3M), math.h(3HEAD), attributes(5), standards(5) SunOS 5.11 12 Jul 2006 erfc(3M)
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erfc(3M) Mathematical Library Functions erfc(3M) NAME
erfc, erfcf, erfcl - complementary error function SYNOPSIS
cc [ 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(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
erf(3M), isnan(3M), math.h(3HEAD), attributes(5), standards(5) SunOS 5.10 1 Sep 2002 erfc(3M)