Free Combination with Variable Calculator - Calculates the following:

Solves for r given n and the combination value.

Solves for n given r and the combination value

This calculator has 1 input.

Solves for r given n and the combination value.

Solves for n given r and the combination value

This calculator has 1 input.

- combination
- a mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter
_{n}P_{r}= n!/r!(n - r)! - factorial
- The product of an integer and all the integers below it
- variable
- Alphabetic character representing a number