# Combination Calculator

## Calculates the number of combinations of n things taken r at a time. | ||

- Purpose of use
- to compute possible combinations of optional filters in a database

[1] 2021/01/18 22:35 Male / 30 years old level / An office worker / A public employee / Very /

- Purpose of use
- for the lolz

[2] 2020/09/02 04:02 Male / Under 20 years old / Elementary school/ Junior high-school student / Very /

- Purpose of use
- homework
- Comment/Request
- would be nice if it showed exactly how it was calculated

[3] 2020/05/19 04:18 Female / Under 20 years old / Elementary school/ Junior high-school student / A little /

- Purpose of use
- To calculate the customizable product options for an AI robot

[4] 2020/03/18 03:35 Male / 50 years old level / An office worker / A public employee / Very /

- Purpose of use
- calculate scent combinations

[5] 2020/01/30 21:52 Male / Under 20 years old / High-school/ University/ Grad student / Very /

- Purpose of use
- Calculating the amount of combinations of 100-residue proteins using 20 amino acids

[6] 2019/09/24 01:06 Male / 20 years old level / High-school/ University/ Grad student / Very /

- Purpose of use
- Needed to calculate a very large probability based on the Combination of 10,000,000 chemicals taken 500,000 at a time. There are 862 thousand zeros on the end of that number. Bigger than a google (only 100 zeros), smaller than a google-plex (a google of zeros). Thanks you!

[7] 2019/08/28 01:02 Male / 60 years old level or over / An office worker / A public employee / Very /

- Purpose of use
- Double checking. Had to try this as site was casio - brought back lots of treasured memories of how useful my scientific calculator was, thank you.

[8] 2019/01/29 03:39 Male / 40 years old level / An office worker / A public employee / Very /

- Purpose of use
- I wanted to determine the feasibility of using top categories in my trivia league to make a fun personality type thing. With 18 categories, it is not feasible.

[9] 2018/09/22 21:48 Female / 30 years old level / An office worker / A public employee / Very /

- Purpose of use
- Homework

[10] 2018/03/20 23:16 Female / Under 20 years old / High-school/ University/ Grad student / Useful /

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**The hyperlink to [Combination]**