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The nCr() Command

Command Summary Command Syntax Calculator Compatibility
Performs the operation "n choose r" using n and r. nCr(expr1,expr2) This command works on all calculators.

[Math][Probability][3]

The nCr() Command

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

:nCr(3,0)

Formulas

The formula used to obtain the result is:
$$ \frac{n!}{r!(n-r)!} $$
This is often referenced with Pascal's Triangle and binomial expansion as well as many areas of mathematics.

Authors: KG