|Stirling's approximation of factorial|
Online calculator computes Stirling's approximation of factorial of given positive integer (up to 170!)
|Combinatorics – combinations, arrangements and permutations|
This calculator calculates the number of combinations, arrangements and permutations for given n and m
This combinations calculator generates all possible combinations of m elements from the set of n elements.
This calculator generates all pairs of factors for given integer.
|Combinatorics. Permutation generator from N to M with repetitions.|
Combinatorics. Permutation generator from N to M with repetitions.
|Combinatorics. Permutation generator from n to m without repetitions|
Combinatorics. Permutation generator from n to m without repetitions
Calculation of the Gamma function using Lanczos approximation
|Generator of combinations that satisfy a condition|
For elements with weights this calculator can filter out all combinations where total weight is under the specified limit.
This online calculator calculates factorial of a positive integer. Practically unlimited positive integer. In fact, it is limited only by the time you are willing to wait until calculation completes. I was patient enough to wait for 100000!
|Tips and tricks #12: Long (infinite) calculations|
This article describes how to perform long or infinite calculations while allowing user to stop them
|Division of factorials|
This online calculator solves factorial division problems when you have factorials in the numerator and denominator.