# number-precision

**Repository Path**: kevin402502/number-precision

## Basic Information

- **Project Name**: number-precision
- **Description**: 🚀1K tiny & fast lib for doing addition, subtraction, multiplication and division operations precisely
- **Primary Language**: JavaScript
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 2
- **Created**: 2021-06-17
- **Last Updated**: 2024-12-03

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# number-precision [![npm version](https://badge.fury.io/js/number-precision.svg)](http://badge.fury.io/js/number-precision) [![Build Status](https://travis-ci.org/dt-fe/number-precision.svg)](https://travis-ci.org/dt-fe/number-precision) [![Coverage Status](https://coveralls.io/repos/github/dt-fe/number-precision/badge.svg?branch=master)](https://coveralls.io/github/dt-fe/number-precision?branch=master)

Perform addition, subtraction, multiplication and division operations precisely using javascript

### Why

```js
0.1 + 0.2 = 0.30000000000000004
1.0 - 0.9 = 0.09999999999999998
0.105.toFixed(2) = 0.1 // not 0.11
```

### Install

```
npm install number-precision --save
```

### Methods

```js
NP.strip(num)         // strip a number to nearest right number
NP.plus(num1, num2)   // addition, num + num2
NP.minus(num1, num2)  // subtraction, num1 - num2
NP.times(num1, num2)  // multiplication, num1 * num2
NP.divide(num1, num2) // division, num1 / num2
NP.round(num, ratio)  // round a number based on ratio
```

### Usage

```js
import NP from 'number-precision'
NP.strip(0.09999999999999998); // =0.1
NP.plus(0.1, 0.2);             // =0.3 not 0.30000000000000004
NP.plus(2.3, 2.4);             // =4.7 not 4.699999999999999
NP.minus(1.0, 0.9);            // =0.1 not 0.09999999999999998
NP.times(3, 0.3);              // =0.9 not 0.8999999999999999
NP.times(0.362, 100);          // = 36.2, not 36.199999999999996
NP.divide(1.21, 1.1);          // =1.1 not 1.0999999999999999
NP.round(0.105, 2);            // =0.11 not 0.1
```

### License
MIT