randommatrix(n, m)
Returns a matrix with n rows and m columns with random reals between 0 and 1.
randommatrix(n, m, v)
As above but the numbers are random between 0 and v. Numbers are real if v is real, or integers if v is integer.
randommatrix(n, m, v1, v2)
As above but the numbers are random between v1 and v2.
Example
randommatrix( 2, 4, 5 )
3 4 4 2
1 3 2 5