The rand(n) function returns an n x n matrix of unique random numbers.
Example
OML
>>rand(4)
0.0421652 0.30783 0.258351 0.680869
0.948486 0.118794 0.172625 0.564678
0.0834101 0.892237 0.866376 0.273034
0.193842 0.945946 0.974604 0.0165791
Block
