## [Solved] Combination

Discuss the formula editor

### [Solved] Combination

I'm sure most of the people on this forum are familiar with the combination symbol. It consists of two numbers in parentheses, with the top number representing the set size and the bottom number representing the subgroup size:

Is there any way to do that in OpenOffice Math? For now, I'm just using the alternate notation, S C k.
Last edited by Hagar Delest on Wed May 04, 2016 9:57 pm, edited 1 time in total.
Reason: tagged [Solved].
OpenOffice 4.1.2 on Windows 10
domesticatedzebra

Posts: 9
Joined: Sat Mar 12, 2016 9:06 pm

### Re: Combination

May be
Code: Select all   Expand viewCollapse view
`left ( binom {S} {k} right ) `
LibreOffice 5.3.7 on Windows Vista
gerard24
Volunteer

Posts: 920
Joined: Sat Oct 30, 2010 5:12 pm
Location: France

### Re: Combination

Or maybe
Code: Select all   Expand viewCollapse view
`left ( stack{S #k} right )`
AOO 4.1.5 Win7Pro/2KPro/XP & *nix (But my heart is still VAX/VMS)
Daiwe01

Posts: 124
Joined: Fri Nov 21, 2008 4:49 am
Location: Georgia USA

### Re: Combination

Thanks for the suggestions.
I tried them in Math, and they both work.
OpenOffice 4.1.2 on Windows 10
domesticatedzebra

Posts: 9
Joined: Sat Mar 12, 2016 9:06 pm

### Re: [Solved] Combination

An arrangement of objects in which the order is not important is called a combination.This is different from permutation where the order matters. For example, suppose we are arranging the letters A, B and C. In a variation, the arrangement ABC and ACB are different. But, in a combination, the arrangements ABC and ACB are the same because the order is not important.

What is the Combination Formula?
The numbers of combinations of n things taken r at a time is written as C(n, r).
The formula is given by:

If you are not recognizable with the n! (n factorial notation) then have a look the factorial class.
OpenOffice 3.1
shubhamkumar

Posts: 5
Joined: Tue Jun 12, 2018 12:53 pm

### Re: [Solved] Combination

shubhamkumar wrote:The numbers of combinations of n things taken r at a time is written as C(n, r).
Most mathematicial papers I seen write it as
left ( binom n r right )
Screen Shot 2018-06-14 at 12.13.29 .png (9.25 KiB) Viewed 258 times
Mr. Programmer
AOO 4.1.5 Build 9789 on Mac OS X 10.9.5.   The locale for any menus or Calc formulas in my posts is English (USA).

MrProgrammer
Volunteer

Posts: 3330
Joined: Fri Jun 04, 2010 7:57 pm
Location: Wisconsin, USA