EXP Function Details
 
Syntax
  EXP(numeric-expression)
 
The EXP function returns e (the base of natural logarithms) to the
power of x. The exponent x must be less than or equal to 88.02969. A
value of x greater than 88.02969 produces an  Overflow error message.
 
The calculation of EXP is performed in single precision by default;
if the argument x is double precision, EXP is calculated in double
precision.