exp2

   Returns the value of 2 raised to the power of the argument.

   This function is supported on OpenVMS Integrity servers and
   Alpha only.

   Format

     #include  <math.h>

     double exp2  (double x);

     float exp2f  (float x);

     long double exp2l  (long double x); )
 

Additional information available:

Argument        Description     Return_Values