Multiply vector by scalar

The following functions are used to multiply a vector by a scalar: v2MulScalar for a 2D vector, v3MulScalar for a 3D vector, and vMulScalar for the general case. Each function receives an optional decimalPlaces parameter.

2D Vector

import { v2MulScalar } from 'mz-math';

const res = v2MulScalar([1, 2], 2); // [2, 4]
const res = v2MulScalar([1, 2], 0.5); // [0.5, 1]
const res = v2MulScalar([1, 2], Math.PI); // [3.141592653589793, 6.283185307179586]
const res = v2MulScalar([1, 2], Math.PI, 2); // [3.14, 6.28]

3D Vector

import { v3MulScalar } from 'mz-math';

const res = v3MulScalar([1, 2, 3], 2); // [2, 4, 6]
const res = v3MulScalar([1, 2, 3], 0.5); // [0.5, 1, 1.5]
const res = v3MulScalar([1, 2, 3], Math.PI); // [3.141592653589793, 6.283185307179586, 9.42477796076938]
const res = v3MulScalar([1, 2, 3], Math.PI, 2); // [3.14, 6.28, 9.42]

General Case

import { vMulScalar } from 'mz-math';

const res = v3MulScalar([1, 2, 3, 4], 2); // [2, 4, 6, 8]