# What does it mean

1. May 11, 2010

### moonman239

when you have two numbers that look almost like a fraction (except without the line in the middle), surrounded by parentheses?

2. May 11, 2010

### LCKurtz

You may be describing a binomial coefficient:

$$\binom n k = \frac {n!}{k!(n-k)!}$$

3. May 11, 2010

### phyzmatix

Damnit! I was too slow (took me a while to remember the English)!

Anyway...here it is Binomial Coefficient

4. May 11, 2010

### moonman239

Resolved, thanks y'all.

5. May 11, 2010

### The Chaz

6. May 12, 2010

### phyzmatix

7. May 12, 2010

### The Chaz

It's on my bookmarks toolbar!