dot - elemop/dot.ts - Ubique documentation

function dot



dot(x: array,
y: array,
): number

Computes the dot product of two arrays.

Takes two arrays of equal length and computes their dot product (sum of element-wise products).

Examples

import { assertEquals, assertThrows } from "jsr:@std/assert";

assertEquals(dot([5, 6, 3], [0.5, -3, 2.3]), -8.600000000000001);

import { assertEquals, assertThrows } from "jsr:@std/assert";

assertEquals(dot([-1, -2, -3], [-4, -5, -6]), 32);

import { assertEquals, assertThrows } from "jsr:@std/assert";

assertEquals(dot([1, 2, 3], [1, 2, 3]), 14);

import { assertEquals, assertThrows } from "jsr:@std/assert";

assertEquals(dot([0, 0, 0], [0, 0, 0]), 0);

import { assertEquals, assertThrows } from "jsr:@std/assert";

assertThrows(() => dot([1, 2], [1, 2, 3]), Error, "Arrays must have the same length");



x: array

First array for dot product



y: array

Second array for dot product

number

The dot product of the two arrays

If inputs are not arrays, arrays are not of the same size, or if no arguments are provided