Lahey/GNU Fortran

Next: , Previous: EPSILON, Up: Intrinsic Procedures


8.73 ERF — Error function

Description:
ERF(X) computes the error function of X.
Standard:
Fortran 2008 and later
Class:
Elemental function
Syntax:
RESULT = ERF(X)
Arguments:

X The type shall be REAL.

Return value:
The return value is of type REAL, of the same kind as X and lies in the range -1 \leq erf (x) \leq 1 .
Example:
          program test_erf
            real(8) :: x = 0.17_8
            x = erf(x)
          end program test_erf
     

Specific names:

Name Argument Return type Standard
DERF(X) REAL(8) X REAL(8) GNU extension