https://github.com/arnellebalane/matrix.js
JavaScript utility library for performing matrix operations
https://github.com/arnellebalane/matrix.js
matrix matrix-library npm-package
Last synced: over 1 year ago
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JavaScript utility library for performing matrix operations
- Host: GitHub
- URL: https://github.com/arnellebalane/matrix.js
- Owner: arnellebalane
- License: mit
- Created: 2014-09-10T23:56:03.000Z (almost 12 years ago)
- Default Branch: master
- Last Pushed: 2017-12-12T13:32:44.000Z (over 8 years ago)
- Last Synced: 2024-04-14T21:51:25.247Z (over 2 years ago)
- Topics: matrix, matrix-library, npm-package
- Language: JavaScript
- Homepage:
- Size: 124 KB
- Stars: 0
- Watchers: 5
- Forks: 0
- Open Issues: 2
-
Metadata Files:
- Readme: readme.md
- Contributing: contributing.md
- License: license
Awesome Lists containing this project
README
matrix.js
=========
javascript utility library for performing matrix operations
#### Available Operations
##### matrix.add
Adds the given matrices.
```javascript
var a = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
var b = [[9, 8, 7], [6, 5, 4], [3, 2, 1]];
var result = matrix.add(a, b);
// result === [[10, 10, 10], [10, 10, 10], [10, 10, 10]]
```
If one of the arguments is a scalar value, performs scalar addition.
```javascript
var a = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
var result = matrix.add(3, a);
// result === [[4, 5, 6], [7, 8, 9], [10, 11, 12]]
```
##### matrix.identity
Creates an identity matrix with a given dimensions.
```javascript
var result = matrix.identity(3);
// result === [[1, 0, 0], [0, 1, 0], [0, 0, 1]]
```
##### matrix.multiply
Multiplies the given matrices.
```javascript
var a = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
var b = [[9, 8, 7], [6, 5, 4], [3, 2, 1]];
var result = matrix.multiply(a, b);
// result === [[30, 24, 18], [84, 69, 54], [138, 114, 90]]
```
If one of the arguments is a scalar value, performs scalar multiplication.
```javascript
var a = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
var result = matrix.multiply(2, a);
// result === [[2, 4, 6], [8, 10, 12], [14, 16, 18]];
```
##### matrix.ones
Creates a ones matrix with the given dimensions.
```javascript
var result = matrix.ones(3);
// result === [[1, 1, 1], [1, 1, 1], [1, 1, 1]]
var result = matrix.ones(3, 4);
// result === [[1, 1, 1, 1], [1, 1, 1, 1], [1, 1, 1, 1]]
```
##### matrix.transpose
Transposes the given matrix.
```javascript
var a = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
var result = matrix.transpose(a);
// result === [[1, 4, 7], [2, 5, 8], [3, 6, 9]]
```
##### matrix.valid
Checks whether the given matrix is a valid matrix.
```javascript
var a = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
var result = matrix.valid(a);
// result === true
var a = [[1, 2, 3], [4, 5], [7, 8, 9]]
var result = matrix.valid(a);
// result == false
```
##### matrix.zeros
Creates a zeros matrix with the given dimensions.
```javascript
var result = matrix.zeros(3);
// result === [[0, 0, 0], [0, 0, 0], [0, 0, 0]]
var result = matrix.zeros(3, 4);
// result === [[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]
```