Permutation Calculator
Enter values to compute.
Result
0
permutations
Understanding the Math
The Permutation Calculator (nPr) computes the result using fundamental principles of mathematics. Calculate the number of ways to arrange objects.
Formula Definition
Result = function f(num){if(num<0)return -1;if(num==0)return 1;return num×f(num-1);} f(n)÷f(n-r)
This formula is applied directly to the inputs provided above. Ensure all units are consistent (e.g., all lengths in meters) before calculation to guarantee accuracy.
Example Problem
Given:
- Total Items (n) = 14
- Selected Items (r) = 6
Solution:
Substitute values into the formula:
Result = fu14ctio14 f(14um){if(14um<0)6etu614 -1;if(14um==0)6etu614 1;6etu614 14um×f(14um-1);} f(14)÷f(14-6)
Quick Notes
- Double-check input units. Inconsistent units (e.g. feet vs meters) will yield incorrect results.
- Calculations are performed with high-precision floating point arithmetic.
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