Lahey/GNU Fortran

Next: , Previous: EXIT, Up: Intrinsic Procedures


8.79 EXP — Exponential function

Description:
EXP(X) computes the base e exponential of X.
Standard:
Fortran 77 and later, has overloads that are GNU extensions
Class:
Elemental function
Syntax:
RESULT = EXP(X)
Arguments:

X The type shall be REAL or COMPLEX.

Return value:
The return value has same type and kind as X.
Example:
          program test_exp
            real :: x = 1.0
            x = exp(x)
          end program test_exp
     

Specific names:

Name Argument Return type Standard
EXP(X) REAL(4) X REAL(4) Fortran 77 and later
DEXP(X) REAL(8) X REAL(8) Fortran 77 and later
CEXP(X) COMPLEX(4) X COMPLEX(4) Fortran 77 and later
ZEXP(X) COMPLEX(8) X COMPLEX(8) GNU extension
CDEXP(X) COMPLEX(8) X COMPLEX(8) GNU extension