FACTORIALRATIO by Jos (10584)

Ratio of factorials, as in (a!b!c!...) / (d!e!f!g!...) (version 2.0, oct 2012) (factorial, product, large numbers)

factorialratio(A,B)

converging variance test by Zlatko Petroff

These functions implement the converging variance test, which is one of the oldest tests. (statistics, probability, infinite)

convvartest_new(X,Z,Xprevious);