Advanced Combination Calculator (nCr)
How to Use:
- Enter the total number of items to choose from (n) in the first field. This must be a non-negative integer.
- Enter the number of items to choose (r) in the second field. This must be a non-negative integer, and r cannot be greater than n.
- Click the "Calculate Combinations" button.
- The total number of unique combinations (nCr) will be displayed.
- Click "Show Details" to view the formula, theory, and a step-by-step calculation.
- Use "Clear All" to reset the calculator.