@daeinc/math

math utilities

Installation

npm i @daeinc/math

then,

import { modF, ... } from "@daeinc/math"

Functions

clamp

const clamp: (val: number, min: number, max: number) => number;

constrain

const constrain: (val: number, min: number, max: number) => number;

dist

const dist: (x1: number, y1: number, x2: number, y2: number) => number;

distSq

const distSq: (x1: number, y1: number, x2: number, y2: number) => number;

There's another version in @daeinc/geom that takes Pt: number[] type as arguments.

floorF

const floorF: (n: number, digit: number) => number;

map

const map: (
  val: number,
  s: number,
  e: number,
  ns: number,
  ne: number
) => number;

mix

const mix: (a: number, b: number, t: number) => number;

lerp

const lerp: (a: number, b: number, t: number) => number;

mod

const mod: (n: number, max: number) => number;

modF

const modF: (n: number, max: number, precision?: number) => number;

modIncl

const modIncl: (n: number, max: number) => number;

polarToCartesian

const polarToCartesian: (radius: number, angle: number) => number[];

Converts polar coodrinate to cartesian coordinate. To use a different center point than the default [0, 0], do something like this:

result.map((v, i) => v + center[i]);

reflect

const reflect: (num: number, axis: number) => number;

roundF

const roundF: (n: number, digit: number) => number;

snapBy

const snapBy: (n: number, inc: number) => number;

snapToArray

const snapToArray: (n: number, snapArr: number[]) => number;

To do

• add more tests

License

MIT

Changelog

0.4.0

• added constants PI and TWO_PI.