linear-arbitrary-precision


Abstraction for linear functionality in
big.js,
bignumber.js,
decimal.js
and others via adapters.

Install

npm i linear-arbitrary-precision

Usage

See CodePen example

$3

- [[adapter]](https://github.com/javiercejudo/linear-bigjs-adapter) [[lib]](https://github.com/javiercejudo/linear-big.js) linear-big.js
- [[adapter]](https://github.com/javiercejudo/bigjs-adapter) [[lib]](https://github.com/MikeMcl/big.js) big.js
- [[adapter]](https://github.com/javiercejudo/bignumberjs-adapter) [[lib]](https://github.com/MikeMcl/bignumber.js) bignumber.js
- [[adapter]](https://github.com/javiercejudo/decimaljs-adapter) [[lib]](https://github.com/MikeMcl/decimal.js) decimal.js
- [[adapter]](https://github.com/javiercejudo/bigdecimal-adapter) [[lib]](https://github.com/iriscouch/bigdecimal.js) bigdecimal.js
- [[adapter]](https://github.com/javiercejudo/floating-adapter) [[lib]](https://github.com/javiercejudo/floating) floating
- [[adapter]](https://github.com/javiercejudo/linear-converter-adapter) [[lib]](https://github.com/javiercejudo/linear-converter) linear-converter
- [[adapter]](https://github.com/javiercejudo/very-simple-statistics-adapter) [[lib]](https://github.com/sumanla13a/statistics-module) statistics-module

See up to date list.

$3

``js
var decimalFactory = require('linear-arbitrary-precision');
var adapter = require('bigjs-adapter'); // See adapters section for full list

var Decimal = decimalFactory(adapter);

Decimal.getPrecision(); // => 20

new Decimal('1').div(new Decimal('3')).valueOf(); // => '0.33333333333333333333'

Decimal.setPrecision(5);

new Decimal('1').div(new Decimal('3')).valueOf(); // => '0.33333'
`

$3

`js
new Decimal('0.1').plus(new Decimal('0.2')).valueOf(); // => '0.3'
new Decimal('0.3').minus(new Decimal('0.1')).valueOf(); // => '0.2'
new Decimal('0.6').times(new Decimal('3')).valueOf(); // => '1.8'
new Decimal('0.3').div(new Decimal('0.2')).valueOf(); // => '1.5'

new Decimal('1').equals(new Decimal('1')); // => true
new Decimal('1').equals(new Decimal('2')); // => false
`

$3

`js
var decimalThird = new Decimal('1').div(new Decimal('3'));

// with bigjs-adapter (other adapters might have differing implementations)
decimalThird.toString() === decimalThird.valueOf() === decimalThird.toJSON(); // => true

Number(decimalThird); // => 1/3
`

$3

`js
var Decimal40 = decimalFactory(adapter);

Decimal40.setPrecision(40);

var decimalThird = new Decimal40('1').div(new Decimal('3'));

var stringified = JSON.stringify(decimalThird);
// => '"0.3333333333333333333333333333333333333333"'

JSON.parse(stringified, Decimal40.reviver);
// => new Decimal40('0.3333333333333333333333333333333333333333')
``

See spec.

Related projects

- linear-converter: flexible linear converter with built in conversions for common units.
- linear-conversion: Linear conversion class for linear-converter.
- rescale: rescales a point given two scales.
- rescale-util: Rescale utilities.
- scale: scales normalised data.
- normalise: normalise data to [0, 1].