erf

   Returns the error function of its argument.

   Format

     #include  <math.h>

     double erf  (double x);

     float erff  (float x); (Integrity servers, Alpha)

     long double erfl  (long double x); (Integrity servers, Alpha)

     double erfc  (double x); (Integrity servers, Alpha)

     float erfcf  (float x); (Integrity servers, Alpha)

     long double erfcl  (long double x); (Integrity servers, Alpha)
 

Additional information available:

Argument        Description     Return_Values