MathUtil

MathUtil - Supplementary Math Tools

Introduction

MathUtil is a complement to NumberUtil, where NumberUtil倾向于 encapsulating simple mathematical calculations, while MathUtil leans towards complex mathematical calculations.

Methods

1. Permutations

• arrangementCount Calculates the number of permutations.
• arrangementSelect Selects permutations from a list.

2. Combinations

• combinationCount Calculates the number of combinations, i.e. C(n, m) = n!/((n-m)! * m!).
• combinationSelect Selects combinations from a list.