Define AmodB as the remainder when A is divided by B. For example 36mod25 = 11. Excel has this function; it is written Mod(A,B) . Now here is another random-number generator:

• Let X₀ = seed .

• Let X_{n + 1} = (7*X_n)mod10⁸.

• Let U_{n + 1} = X_n+1/10⁸.

The list of numbers U₁ , U₂, … are the pseudo-random numbers generated by this random number generator. (This is one of the many uniform random-number generators given in Abramowitz and Stegun, 1972).