👉 Combinatorial is a branch of mathematics that deals with the study of combinations and permutations, which are methods for arranging objects in a specific order. In other words, it's about finding all possible ways to choose certain items from a larger set. In the context of combinatorics, "combinatorial" means relating to or involving combinations and permutations. For example, in combinatorial mathematics, you might be asked to find all possible ways to arrange 10 different objects into groups