UNPKG

@fimbul-works/vec

Version:

A comprehensive TypeScript vector math library providing 2D, 3D, and 4D vector operations with a focus on performance and type safety.

github.com/fimbul-works/vec

fimbul-works/vec

12 lines (11 loc) • 652 B
1
2
3
4
5
6
7
8
9
10
11
12
import { dot4D } from "./dot-4d.js"; import { magnitude4D } from "./magnitude-4d.js"; /** * Calculates the angle between two 4D vectors. * @param {ArrayVector4D} xyzw1 - First vector as `[x, y, z, w]` * @param {ArrayVector4D} xyzw2 - Second vector as `[x, y, z, w]` * @param {number} [m1] - Optional magnitude of the first vector (default: `magnitude4D(xyzw1)`) * @param {number} [m2] - Optional magnitude of the second vector (default: `magnitude4D(xyzw2)`) * @returns {number} The angle in radians */ export const angleBetween4D = (xyzw1, xyzw2, m1 = magnitude4D(xyzw1), m2 = magnitude4D(xyzw2)) => Math.acos(dot4D(xyzw1, xyzw2) / (m1 * m2));