Permutation Calculator

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Example 1. The coach wants to introduce each of the starting players at Wednesday's game. In how many different orders can each of the 5 starting players be introduced?

Example 2. A bookstore will display seven books on sale a long a special shelf in the store's front window. How many different way can these books be arranged on this shelf?

INSTRUCTION:
Step 1. Enter the given total number represented by variable letter n = 5 ,
Step2. Then required arrangement , r = 5. Finally click the black button to solve
Using Python web browser to compute the permutation


n = Given, total number of distinct element to choose from.
n ! =
r = Given, counting all possible ways of arrangement taking number of element at a time. Remember in permutation every different possible arrangement or order is counted as an answer.
r ! =

Click the black button →

to solve for permutation or counting possible ways of arrangement
(n- r) ! = remember this important concept 0! = 1

n!
n P r =
(n-r)!


Answer, n P r = Possible Permutation or different ways of arrangement

The initial pattern for solving this type of problem is remembering the formula. Next mastering how to use your personal online calculator. Now you have your tool for computational thinking. You can do quick analysis. For example you can adjust the grouping at a time to r = 5 , the number (n) of population to choose from to n = 5 . Tip do not enter comma , sign because you will get an error message of NaN, meaning Not a Number data entry.

The coach wants to introduce each of the starting players at Wednesday's game. In how many different orders can each of the 5 starting players be introduced?







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