Module math

Math utilities for chart manipulation: vectors, matrices, interpolation, random/noise, rotation, and array helpers.

Quick reference

Category	Key exports
Vec2	`vec2`, `vec2Add`, `vec2Sub`, `vec2Scale`, `vec2Lerp`, `vec2Rotate`, `vec2Normalize`
Mat3	`mat3Identity`, `mat3TRS`, `mat3Mul`, `mat3TransformVec2`
Scalar	`clamp`, `lerp`, `inverseLerp`, `remap`, `smoothstep`, `degToRad`, `radToDeg`
Angles	`wrapAngle`, `angleDifference`, `lerpAngle`
Random	`randomRange`, `randomInt`, `randomPick`, `shuffle`, `createSeededRandom`
Noise	`valueNoise1D`, `valueNoise2D`, `fbm2D`
Arrays	`linspace`, `arange`, `sum`, `average`, `minMax`, `groupBy`, `binarySearchRight`
Misc	`deepClone`, `approxEqual`, `fract`, `mod`, `sign`

Example

import { vec2, vec2Add, vec2Normalize, lerp, clamp } from './math';

// Normalize a direction vector and advance along it
const dir = vec2Normalize(vec2(3, 4));   // { x: 0.6, y: 0.8 }
const pos = vec2Add(vec2(0, 0), dir);    // { x: 0.6, y: 0.8 }

// Smooth fade from 0 → 255 alpha
const alpha = Math.round(lerp(0, 255, clamp(t, 0, 1)));

Interfaces

Vec2

Type Aliases

Mat3

Variables

VEC2_ZERO
VEC2_ONE
VEC2_RIGHT
VEC2_UP

Module math

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Example

Interfaces

Type Aliases

Variables

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