Permutation Calculator

Calculates the number of permutations of n things taken r at a time.

number of things n
    1. n≧r≧0
number to be taken r

permutations nPr
[1-4] /4Disp-Num
[1]  2018/05/23 07:42   Female / Under 20 years old / High-school/ University/ Grad student / A little /
Purpose of use
math project
[2]  2018/04/09 06:44   - / - / - / - /
During a special promotion, a customer purchasing a computer and a printer is given a choice of 3 free software packages. There are 10 different software packages from which to select. How many different groups of software packages can be selected?

Hint: This is a Combination problem!
[3]  2016/06/17 19:08   Male / 20 years old level / High-school/ University/ Grad student / Useful /
Purpose of use
the system is effective, but what i need is a complete table of a 9P3. just like the 4P2 above.
[4]  2016/04/07 02:32   Female / 30 years old level / An office worker / A public employee / Useful /
Purpose of use
Trying to calculate how many colors a CMYK printer can create.


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