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## Re: Request for combinatorial functions

**From**: |
Paul Kienzle |

**Subject**: |
Re: Request for combinatorial functions |

**Date**: |
Tue, 17 Apr 2007 07:14:15 -0400 |

On Apr 16, 2007, at 7:39 PM, Phillip M. Feldman wrote:

Combinatorics seems to be an area where Octave is weak. I would really
like to be able to do the following: 1) Compute factorials using the
exclamation point
notation, e.g., get 24 as the result if I enter "4!". 2) Compute

`n-choose-m using the choose(n,m) notation. These functions really
``should
`be part of the Octave base.

nchoosek is part of Octave base. Following the Matlab interface,
it will generate the combinations for you if you give it a vector,
or tell you the number of combinations if you give it a scalar.
bincoeff just computes the binomial coefficients n-choose-k.
- Paul