====== EXP ======

===== Syntax =====

<code basic>
N  = EXP( X )
</code>

===== Parameter =====

X  is a number

===== Description =====

The exponential value of X, i.e., the value of the base of natural logarithms (e = 2.71828)
raised to the power of X;  if EXP(X) is less that machine infinitesimal, then its value
shall be replaced with zero.