Combinatorial Calculator

조합 문제(순열, ​​변형 등)를 해결하기 위한 간단한 앱

This is the perfect app for solving school problems. Compute factorial of n to solve permutations problem. Show permutations and find their ranks. Find how many ways there are to make a group of 3 out of 12 students (combinations). Find all variations for the safe password (variations) and many more.