complexRand
Construct an array of complex random numbers with uniformly distributed magnitudes and angles.
y=complexRand(n)
y=complexRand(n1, n2, n3, ...)

Inputs
n	An integer or an integer array
n1,n2,n3,...	a list of integers
Outputs
y	an array of complex random numbers.

Description
complexRand(n), when n is a scalar integer, returns an nXn matrix of complex numbers.

complexRand(n), when n is an array of integers, returns an array of complex numbers whose size is n .

complexRand(n1,n2,n3,...nn) , where n1, n2, etc. are scalar integers, returns an array of complex numbers whose size is [n1 n2 n3 .... nn] .

The magniudes of the elements of the output array are independently and uniformly distributed between 0 and 1.

The angles of the elements of the output array are independently and uniformly distributed between -pi and pi .