https://github.com/ethanent/mathvm

Node math processing and execution
https://github.com/ethanent/mathvm

math math-expression-evaluator math-parser nodejs

Last synced: about 2 months ago
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Node math processing and execution

• Host: GitHub
• URL: https://github.com/ethanent/mathvm
• Owner: ethanent
• License: mit
• Created: 2019-10-16T04:38:53.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2020-05-24T20:33:03.000Z (over 4 years ago)
• Last Synced: 2024-01-30T23:26:06.202Z (11 months ago)
• Topics: math, math-expression-evaluator, math-parser, nodejs
• Language: JavaScript
• Homepage:
• Size: 14.6 KB
• Stars: 4
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# mathvm

> Node math processing and execution VM

[GitHub](https://github.com/ethanent/mathvm) | [NPM](https://www.npmjs.com/package/mathvm)

## Install

```

npm i mathvm

```

```js

const mathvm = require('mathvm')

```

## Use

```js

mathvm.exec('1 + 5')

// => 6

```

```js

mathvm.exec('7 + x ^ 2', {

	'vars': {

		'x': 2

	}

})

// => 11

```

```js

mathvm.exec('asin(cos(pi))')

// => -Pi/2

```

```js

mathvm.exec('5 * add(x, 3)', {

	'functions': {

		'add': (a, b) => a + b

	},

	'vars': {

		'x': 2

	}

})

// => 25

```

## EnvSets

```js

mathvm.exec('sin(pi / 2)')

// => 1

mathvm.exec('sin(pi / 2)', {}, [])

// Errors, function sin does not exist

mathvm.exec('sin(pi / 2)', {}, ['trig'])

// => 1

```