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https://github.com/mathematicator-core/calculator

Modular advance calculations layer.
https://github.com/mathematicator-core/calculator

arithmetic calculator computing equation math number-theory

Last synced: 2 months ago
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Modular advance calculations layer.

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README

          


Advance PHP Calculator





[![Integrity check](https://github.com/mathematicator-core/calculator/workflows/Integrity%20check/badge.svg)](https://github.com/mathematicator-core/calculator/actions?query=workflow%3A%22Integrity+check%22)
[![codecov](https://codecov.io/gh/mathematicator-core/calculator/branch/master/graph/badge.svg)](https://codecov.io/gh/mathematicator-core/calculator)
[![Latest Stable Version](https://poser.pugx.org/mathematicator-core/calculator/v/stable)](https://packagist.org/packages/mathematicator-core/calculator)
[![Latest Unstable Version](https://poser.pugx.org/mathematicator-core/calculator/v/unstable)](https://packagist.org/packages/mathematicator-core/calculator)
[![License: MIT](https://img.shields.io/badge/License-MIT-brightgreen.svg)](./LICENSE)
[![PHPStan Enabled](https://img.shields.io/badge/PHPStan-enabled%20L8-brightgreen.svg?style=flat)](https://phpstan.org/)

Simple to use **modular calculator** with **steps to solution** and **result explanation**.

It is highly recommended to make sure you have enabled [BCMath](https://www.php.net/manual/en/book.bc.php)
or [GMP](https://www.php.net/manual/en/book.gmp.php) extension on your PHP server for much
faster calculations.

## Installation

```
composer require mathematicator-core/calculator
```

## Idea

Imagine you want compute some math problem, for instance:

```
(5 + 3) * (2 / (7 + 3))
```

How to compute it? Very simply:

```php
$calculator = new Calculator(/* some dependencies */);

echo $calculator->calculateString('(5 + 3) * (2 / (7 + 3))'); // \frac{8}{5}
```

Method `calculateString()` returns entity `CalculatorResult` that implements `__toString()` method.

Advance use is by an array of tokens created by `Tokenizer`:

```php
$tokenizer = new Tokenizer(/* some dependencies */);

// Convert math formule to array of tokens:
$tokens = $tokenizer->tokenize('(5+3)*(2/(7+3))');

// Now you can convert tokens to more useful format:
$objectTokens = $tokenizer->tokensToObject($tokens);

$calculator->calculate($objectTokens);
```

## Mathematicator Framework tools structure

The biggest advantage is that you can choose which layer best fits
your needs and start build on the top of it, immediately, without the need
to create everything by yourself. Our tools are tested for bugs
and tuned for performance, so you can save a significant amount
of your time, money, and effort.

Framework tend to be modular as much as possible, so you should be able
to create an extension on each layer and its sublayers.

**Mathematicator framework layers** ordered from the most concrete
one to the most abstract one:





Search




Modular search engine layer that calls its sublayers
and creates user interface.






Vizualizator




Elegant graphic visualizer that can render to
SVG, PNG, JPG and Base64.

Extensions:


Mandelbrot set generator








Calculator




Modular advance calculations layer.


Extensions:


Integral Solver
,

Statistics








Engine




Core logic layer that maintains basic controllers,
DAOs, translator, common exceptions, routing etc.






Tokenizer




Tokenizer that can convert string (user input / LaTeX) to numbers
and operators.






Numbers




Fast & secure storage for numbers with arbitrary precision.
It supports Human string and LaTeX output and basic conversions.

**Third-party packages:**

⚠️ Not guaranteed!





REST API




Install the whole pack as a REST API service
on your server (Docker ready) or
access it via public cloud REST API.

## Contribution

> Please help improve this documentation by sending a Pull request.

### Tests

All new contributions should have its unit tests in `/tests` directory.

Before you send a PR, please, check all tests pass.

This package uses [Nette Tester](https://tester.nette.org/). You can run tests via command:
```bash
composer test
````

Before PR, please run complete code check via command:
```bash
composer cs:install # only first time
composer fix # otherwise pre-commit hook can fail
````