Computation :: Probability

combination(set, subset)

Returns the number of unique subsets created from all combinations of a number of elements.

erf(x)

Returns the probability that a Gaussian random number falls within a given range.

exp_dist(m)

Returns a random number with exponential distribution.

factorial(number)

Returns the factorial of a given number.

gauss(m, sd)

Returns a pseudo-random number with an exact Gaussian distribution.

permutation(set, subset)

Returns the number of unique subsets created from all permutations of a number of elements.

random_weighted(p0 [, p1, ..., pN])

Returns a randomly selected index based on their given relative probabilities.

roll_dice(num, sides)

Returns the sum of a number of die rolls using dice with a given number of sides.