The
EXP function returns the
natural exponential function of *
Expression*
.

The expression to be evaluated. If *
Expression*
is double-precision floating or complex, the result is of the same type. All other types are converted to single-precision floating-point and yield floating-point results. The definition of the exponential function for complex arguments is:

EXP(*
x*
) = COMPLEX(*
eR*
cos *
I*
, *
eR*
sin *
I*
)

*
R*
= real part of *
x*
, and *
I*
= imaginary part of *
x*
. If *
Expression*
is an array, the result has the same structure, with each element containing the result for the corresponding element of *
Expression*
.