Circular Permutation Calculator (Pn)

Formula:

The formula to calculate the number of circular permutations (Pn) for n items is:

$$P_n=(n-1)!$$

Where:

• n is the number of items.
• (n - 1)! is the factorial of (n - 1).

Example:

• If n = 4:
  The number of circular permutations is calculated as:

  $$P_4=(4-1)!=3!=3\times 2\times 1=6$$

  So, the number of circular permutations for 4 items is 6.

Steps to Use:

1. Input the value of n (the number of items) in the provided text box.

2. Click the “Calculate” button to compute the number of circular permutations.

3. View the result displayed below the calculator.

4. To clear the input and result, click the “Clear” button.