kapcash / ts-matrix

A TypeScript vector and matrix math library.

Welcome here! 👋

---

I'm Florent

I'm French 🇫🇷 but I live in Barcelona, Spain 🇪🇸.
I graduated from the ESIR engineering school in Computer Sciences.

I speak about my developer journey on Twitter too (@kapcash)

My work

I'm a Vuejs developer.

And I mainly use the Nuxt framework to build apps.

I also have experience in NodeJS, using the NestJS framework, and in Ruby On Rails.

The work I am most proud of: (aka. the only personal projects I managed to release)

• bookmark-switcher: A browser extension built with Vue 3 to provide multiple bookmark bars
• vue-class-transformer: A CLI that transforms vanilla Vuejs components to Typescript class based components
• vue-spin-wheel: A renderless wheel component that moves on user interactions

My Github stats

ts-matrix's Issues

subtract, add, normalize - do they mutate or return new vector?

Thank you for this library!
The documentation says that subtract, add, and normalize mutate the current vector, but looking at and testing the code, these methods seem to return a new vector. Is the documentation correct for these?

`get rows()` and `get columns()` do not return arrays.

The README says that these two getters should return arrays of their respective objects, but they currently return the sizes of each dimension instead.

https://github.com/Kapcash/ts-matrix/blob/ca38d57d9e97084e7545b761465ab7220ed6a8e2/src/Matrix.ts#L21C7-L21C7

Quat import error:

In ts-matrix.d.ts there in an import error:

import Matrix from './Matrix';
import Quat from './Quat';
import Vector from './Vector';
export { Vector, Matrix, Quat, };

File ./Quat does not exist.
Exist ./quat

This creates a compilation error.
Can you fix it?

Thank you

Error in matrix inverse()

Hi, found a sign error in the matrix inverse, that the tests (only 1 inverse() test) did not catch. See inverse code below with the new fix added:

    inverse() {
        if (this.rows !== this.columns) throw new Error("The matrix isn't squared!");
        const det = this.determinant();
        if (det === 0) throw new Error("Determinant is 0, can't compute inverse.");

        // Get cofactor matrix
        let sign = -1;
        const cofactor = new Matrix (this.rows, this.columns,
            this.values.map((row, i) => row.map((val, j) => {
                sign = Math.pow(-1,i+j);           /////////////////////////////////// FIXED THIS LINE ////////////////
                return sign * this.getCofactor(i, j).determinant();
            })));
        // Transpose it
        const transposedCofactor = cofactor.transpose();
        // Compute inverse of transposed / determinant on each value
        return new Matrix(this.rows, this.columns,
            this.values.map((row, i) => row.map((val, j) => transposedCofactor.at(i, j) / det)));
    }

Need to add target: 'node in webpack config

Hi, I got an error testing with jest, complaining 'window' is used. After adding ** target: 'node' ** in webpack.config.js, this was resolved.

const path = require('path');

module.exports = {
  entry: './src/ts-matrix.ts',
  devtool: 'inline-source-map',
  mode: 'production',
  target: 'node',
  module: {
    rules: [
      {
        test: /\.ts$/,
        use: 'ts-loader',
        exclude: /node_modules/
      }
    ]
  },
  resolve: {
    extensions: ['.ts']
  },
  output: {
    library: 'tsmatrix',
    libraryTarget: 'umd',
    filename: 'tsmatrix.js',
    path: path.resolve(__dirname, 'dist')
  }
};