epidiah OP , 13 days ago

This is a thing I've been playing with since my days of calculator programming: https://en.wikipedia.org/wiki/Linear_congruential_generator

There's no random number generator on a HP-12c, so if I wanted to a pocket dice-roller, I had to code up one of these formulas.

The basic idea is that you feed it a number and it spits out a number that you wouldn't expect, in a particular range, where it is somewhat uniformly distributed.