Command Summary

Performs the operation "n choose r" using n and r.

Command Syntax


Menu Location


Calculator Compatibility

This command works on all calculators.

This performs the operation "n choose r" where expr1 is n and expr2 is r.



The formula used to obtain the result is:

\begin{align} \frac{n!}{r!(n-r)!} \end{align}

This is often referenced with Pascal's Triangle and binomial expansion as well as many areas of mathematics.

Related Commands

Several (around 3) commands have a similar function or are used in a similar context to this command. Make a bulleted list of them, with links to the other commands' pages. It will often be the case that several commands all link to each other.

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