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Base Two Exponentiation Function
Syntax x = pow2(e)
x = pow2(f, e)
See Also log2 , ^ , exp

Description
Computes the element-by-element base-two exponentiation of e where e is a real, double-precision or complex matrix.

One Argument
If f is not present, x satisfied the equation
          e
     x = 2

Two Arguments
If f is present, x satisfied the equation
                  int(e)
     x = Re[f] * 2 
where Re[f] is the real part of f and int(e) is the integer part of e. If both arguments are real, x is real, otherwise x is double-precision.

Example
     pow2(2.)
 returns
     4
 If you enter
     pow2( [1., 2.], [0., 1.] )
 O-Matrix will reply
     {
     [ 1 , 4 ] 
     }