DESCRIPTION¶
Returns a number in the random range [0 .. n-1].
The random number generator is proven to deliver an equal distribution of numbers over a big range, with no repetition of number sequences for a long time. The downside of these (desirable) qualities is that when generating numbers in a small range over short time, certain numbers will appear far more often than others.
The only solution is the implementation of a special simul_efun which takes special steps to implement an equal distribution over small ranges and short times.