A permutation is a combination where order matters. In other words, a permutation is an ordered combination. There are two types of permutations: The PERMUTATIONA function calculates permutations where repetitions are allowed. To calculate permutations where repetitions are not allowed, use the PERMUT function.
Example
To use PERMUTATIONA, specify the total number of items and “number_chosen”, which represents the number of items in each combination. For -example, to calculate 3-number permutations for the numbers 0-9, there are 10 numbers and 3 chosen, so the formula is: You can see this result in cell D8 in the example shown.
Notes
A permutation is a group of items in which order/sequence matters. If order is not significant, see the COMBIN function. Arguments that contain decimal values are truncated to integers. PERMUTATIONA returns a #VALUE! error value if either argument is not numeric.
Dave Bruns
Hi - I’m Dave Bruns, and I run Exceljet with my wife, Lisa. Our goal is to help you work faster in Excel. We create short videos, and clear examples of formulas, functions, pivot tables, conditional formatting, and charts.
