like combination/choose, nCr is

what about for permutation, nPr?

I can't seem to find the code for it. Thanks!

Printable View

- April 26th 2008, 08:09 AMzepherHow to type the symbol for permutation?
like combination/choose, nCr is

what about for permutation, nPr?

I can't seem to find the code for it. Thanks! - April 26th 2008, 08:14 AMMoo
Hello,

I've went to wikipedia, so excuse me if it doesn't correspond to the writing you know..

: _{n} P_{r}

Or sometimes : : P_{r}^{n} - April 26th 2008, 09:11 AMMathstud28
- April 26th 2008, 09:21 AMIsomorphism
For "choose" , I generally use [tex]n \choose r [/tex].

However there is an alternative, which Plato uses:[tex]{\binom{n}{r}} [/tex] which also gives

Why would they keep 2 symbols for the same representation(Wondering) - April 26th 2008, 09:35 AMMoo
Perhaps some people don't know about the probability one but know about the polynomial one ? Or vice-versa ? :D