insert a choose statement in latex

February 23rd, 2006 by Lawrence David

if you’re trying to fit a choose statement into an equation in latex, you might be tempted to use nchoosek (as i was). that doesn’t work though.

try this instead:

N \choose{2}

to print the equivalent of “n choose 2.”

check out the other tips and tricks i've compiled on these pages. you might learn something else interesting!

on 19 Sep 2006 at 3:21 am Anon

I found that useful, thanks.
on 06 May 2007 at 7:21 pm Katya

it didn’t work for me inserting this into a larger equation.
I used {n \choose k} instead.
on 01 Feb 2008 at 9:37 pm Danielle

I used the {n \choose k} and it worked beautifully!!! Thanks!!!
on 06 Feb 2008 at 12:49 am Alex

This was useful, thanks. I guessed it would have been \choose{N}{K}, but that would have made too much sense, I guess.
on 30 May 2008 at 4:49 pm Mercredi

The construction ${n \choose r}$ (that’s the more correct form for $n \choose{r}$, what you gave) is now deprecated; it’s generally better to use $\binom{n}{r}$ or $\dbinom{n}{r}$.
on 16 Mar 2011 at 5:37 pm Carly

Thanks, just what I was looking for

from the desk of stinkpot