Factorials, Permutations and Combinations Calculator
This calculator provides a quick and easy means of computing factorials, permutations, and combinations.
Start...
Click the tab to select which calculation you need (factorials/permutations/combinations).
The window displays the formula that you're evaluating. Enter the parameters
n
and
r
(just enter
n
for factorials) and press "OK".
The result appears below in the window.