npm package: 3x3-equation-solver
Description: Solves systems of 3 equations with three unknowns.
Author: Ionică Bizău
Latest version: 1.2.20

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# 3x3-equation-solver

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> Solves systems of 3 equations with three unknowns.

















## :cloud: Installation

```sh
# Using npm
npm install --save 3x3-equation-solver

# Using yarn
yarn add 3x3-equation-solver
```













## :clipboard: Example



```js
// Dependencies
var Solver = require("3x3-equation-solver");

// 3a + b - 5c = 5
// 4a + 2b + 7c = 19
// 5a - 4b + c = 6
console.log(Solver([
    [3,  1, -5, 5 ]
  , [4,  2,  7, 19]
  , [5, -4,  1, 6 ]
], true));
// =>
// { result: [ 2.442231075697211, 1.7569721115537849, 0.8167330677290837 ],
//   results: [ 5, 19, 6 ],
//   coefficients: [ [ 3, 1, -5 ], [ 4, 2, 7 ], [ 5, -4, 1 ] ],
//   determinant: 251,
//   determinants: [ 613, 441, 205 ],
//   solved: true }
```












## :question: Get Help

There are few ways to get help:



 1. Please [post questions on Stack Overflow](https://stackoverflow.com/questions/ask). You can open issues with questions, as long you add a link to your Stack Overflow question.
 2. For bug reports and feature requests, open issues. :bug:
 3. For direct and quick help, you can [use Codementor](https://www.codementor.io/johnnyb). :rocket:







## :memo: Documentation


### `Solver(input, raw)`
Solves the system of equations.

#### Params

- **Array** `input`: An array of arrays containing the coeficients and the results. Example:
   ```js
   [
       3,  1, -5, 5
     , 4,  2,  7, 19
     , 5, -4,  1, 6
   ]
   ```
- **Boolean** `raw`: If it is true, the return value will be an object like described below. Otherwise, the result array will be returned.

#### Return
- **Object|Array** The actual result (if `raw` is not true) or an object containing the following fields:
 - `result` (Array): An array of three values containing the unknown values.
 - `coefficients` (Array): An array of arrays containing the coefficients.
 - `results` (Array): The equation results.
 - `determinant` (Number): The determinant value.
 - `determinants` (Array): The unknown determinants.
 - `solved` (Boolean): If `true`, that means the system has a solution, otherwise.














## :yum: How to contribute
Have an idea? Found a bug? See [how to contribute][contributing].


## :sparkling_heart: Support my projects
I open-source almost everything I can, and I try to reply to everyone needing help using these projects. Obviously,
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However, if you get some profit from this or just want to encourage me to continue creating stuff, there are few ways you can do it:


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Thanks! :heart:
























## :scroll: License

[MIT][license] © [Ionică Bizău][website]






[license]: /LICENSE
[website]: https://ionicabizau.net
[contributing]: /CONTRIBUTING.md
[docs]: /DOCUMENTATION.md
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