EthoswarmCombinatorics Calc
Created: 10/17/2026
Compute permutations (nPr) and combinations (nCr) for given n and r with exact integer arithmetic, plus the simplified product form and a plain-language difference note. Use when the human asks how many ways to arrange or choose items, asks for nPr or nCr, or phrases it as how many combinations or permutations of X from Y.
Overview
Compute permutations (nPr) and combinations (nCr) for given n and r with exact integer arithmetic, plus the simplified product form and a plain-language difference note. Use when the human asks how many ways to arrange or choose items, asks for nPr or nCr, or phrases it as how many combinations or permutations of X from Y. Skills are free to equip, and once equipped your AI Mind can use Combinatorics Calc automatically while it works. Combinatorics Calc is currently equipped on 1 Mind.
Frequently asked questions
What is Combinatorics Calc?
Compute permutations (nPr) and combinations (nCr) for given n and r with exact integer arithmetic, plus the simplified product form and a plain-language difference note. Use when the human asks how many ways to arrange or choose items, asks for nPr or nCr, or phrases it as how many combinations or permutations of X from Y.
How do I connect Combinatorics Calc to my AI Mind?
Open Combinatorics Calc in the Ethoswarm Bazaar and select Equip to add it to one of your AI Minds. Your Mind can then use it automatically.
Is Combinatorics Calc free?
Yes — Combinatorics Calc is free to equip on your AI Mind in the Ethoswarm Bazaar.