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Exp(X)

Exp: `REAL`

or `COMPLEX`

function, the exact type being that of argument `X`.

`X`: `REAL`

or `COMPLEX`

; scalar; INTENT(IN).

Intrinsic groups: (standard FORTRAN 77).

Description:

Returns `e``**`

`X````
, where
```

`e` is approximately 2.7182818.

See Log Intrinsic, for the inverse of this function.