Combinatorics Edit this page Classic editor History Talk0 873pages on this wiki Category page Binomial coefficient “Combinatorics is an area of discrete mathematics that studies collections of distinct objects... Combinatorics “Factorial is a function denoted by a trailing exclamation point (!), which is defined for all... Factorial “In combinatorics, the rule of sum is a basic counting principle. Stated simply, it is the idea... Rule of sum “A combination is the number of ways a given number of objects can be selected from a group when... Combination “A multiset is a collection of unordered objects. Unlike sets, elements of multisets need not be... Multiset Tetrahedral number “Permutations are the number of ways one can place items where order is important. For example... Permutation Pages in category "Combinatorics" The following 10 pages are in this category, out of 10 total. CombinatoricsB Binomial coefficientC CombinationF Factorial M MultisetP Pentatopic number PermutationR Rule of product R cont. Rule of sumT Tetrahedral number Categories: Discrete mathematics Add category Cancel Save