mathjs
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Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif
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JavaScript
export var invmodDocs = {
name: 'invmod',
category: 'Arithmetic',
syntax: ['invmod(a, b)'],
description: 'Calculate the (modular) multiplicative inverse of a modulo b. Solution to the equation ax ≣ 1 (mod b)',
examples: ['invmod(8, 12)=NaN', 'invmod(7, 13)=2', 'math.invmod(15151, 15122)=10429'],
seealso: ['gcd', 'xgcd']
};