EXP — Exponential function

Description

EXP(X) computes the base e exponential of X.

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

Standard

Fortran 77 and later, has overloads that are GNU extensions

Class

Elemental function

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