erfc man page on Solaris

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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 5.10			  12 Jul 2006			      erfc(3M)
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