3x3-equation-solver

Solves systems of 3 equations with three unknowns.

☁️ Installation

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

# Using yarn
yarn add 3x3-equation-solver

📋 Example

// 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 }

❓ Get Help

There are few ways to get help:

Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
For bug reports and feature requests, open issues. 🐛
For direct and quick help, you can use Codementor. 🚀

📝 Documentation

`Solver(input, raw)`

Solves the system of equations.

Params

Array input: An array of arrays containing the coeficients and the results. Example:
```
[
    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.

😋 How to contribute

Have an idea? Found a bug? See how to contribute.

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💫 Where is this library used?

If you are using this library in one of your projects, add it in this list. ✨

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IonicaBizau / 3x3-equation-solver