velt/math#

import { gcd, BigInt } from "velt/math". Integer helpers and arbitrary-precision integers. Float math (Math.sqrt, Math.floor, Math.random, …) is the prelude's Math, a global as in JavaScript.

Integer helpers#

clamp(x, lo, hi), gcd(a, b), lcm(a, b), isPrime(n) and fib(n), all on i64.

import { clamp, gcd, lcm, isPrime, fib } from "velt/math";

console.log(clamp(15, 0, 10), gcd(12, 18), lcm(4, 6), isPrime(97), fib(50)); // 10 6 12 true 12586269025

BigInt#

BigInt is an integer of any size, like JavaScript's BigInt, with arithmetic as methods (a.add(b), a.mulIntAssign(10)); BigIntError is what BigInt.parse throws for text that is not an integer.