3x3-equation-solver

Solves systems of 3 equations with three unknowns.

:cloud: Installation

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

# Using yarn
yarn add 3x3-equation-solver

:clipboard: 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 }

:question: Get Help

There are few ways to get help:

1. Please post questions on Stack Overflow. 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. :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:

  [
      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.

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:dizzy: Where is this library used?

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

• no-one-left-behind

:scroll: License

MIT © Ionică Bizău