https://cienciaprogramada.com/tags/permutations/ Recent content in permutations on Ciência Programada Hugo -- gohugo.io en contato[@]cienciaprogramada.com.br (Francisco Bustamante) contato[@]cienciaprogramada.com.br (Francisco Bustamante) © 2026 Francisco Bustamante Tue, 14 Jul 2026 00:00:00 +0000 https://cienciaprogramada.com/2026/07/permutations-with-repetition/ Tue, 14 Jul 2026 00:00:00 +0000 contato[@]cienciaprogramada.com.br (Francisco Bustamante) https://cienciaprogramada.com/2026/07/permutations-with-repetition/ How many anagrams does the word MAMBEMBE have? Fewer than an 8-letter word with distinct letters would have, because swapping two equal letters does not create a new anagram. The formula discounts the repetitions by dividing by factorials, and it works for binary sequences and for shortest paths on grids. https://cienciaprogramada.com/2026/07/permutations/ Thu, 02 Jul 2026 00:00:00 +0000 contato[@]cienciaprogramada.com.br (Francisco Bustamante) https://cienciaprogramada.com/2026/07/permutations/ How many anagrams does the word VIRUS have? In how many ways can 5 friends sit around a table? The answers are 120 and 24, by simple and circular permutations. We will also see adjacency restrictions, the traveling salesman problem, and derangements.