# Talk:Combinatorics

So I want to add a section on the choose function, but as you can see the choose function isn't working

I looked online and \binom{n}{r} the only way I can find to do it. Do we need a software update? HelpJazz 15:32, 30 March 2008 (EDT)

Seems to work fine now. SamHB (talk) 22:51, 21 September 2018 (EDT)

## Categories

I have put this back into the mathematics category. While having something be in two categories that are close relatives of each other is, in general, a bad idea, this is an exception. There are a number of such exceptions, particularly in the science and math area. See https://www.conservapedia.com/Conservapedia:How_to_create_and_maintain_high-quality_articles#Category_references, particularly the part about "But you need to use your judgment here." Combinatorics is a completely reasonable thing for someone to see if they are browsing for mathematical topics. They don't need to know that it is related to probability and statistics. In fact, combinatorics *isn't necessarily related to probability and statistics*. It is a mathematical topic in its own right. By contrast, the recent change to the two-pancake theorem and the ham sandwich theorem was reasonable. Those two things are pretty specific, and a person browsing for topics in mathematics doesn't need to see them. (Actually, they are not theorems of topology so much as theorems of advanced mathematical analysis and measure theory, but this is the best we can do.) SamHB (talk) 22:49, 21 September 2018 (EDT)