Decimal

Simple decimal arithmetic for the browser *and*node.js!

Why?

```
Why don’t my numbers, like 0.1 + 0.2 add up to a nice round 0.3,
and instead I get a weird result like 0.30000000000000004?
Because internally, computers use a format (binary floating-point)
that cannot accurately represent a number like 0.1, 0.2 or 0.3 at all.
```

Source : http://floating-point-gui.de/I wrote this because I needed to do simple computation in the browser and I couldn't find a lightweight library to do it.

How to use?

## In the browser

`<script src="lib/decimal.js"></script>`

## In node

`npm install decimal`

then in your program`var Decimal = require('decimal');`

Examples

```
>>> 1.1 + 2.2
3.3000000000000003
>>> Decimal('1.1').add('2.2').toNumber()
3.3
>>> 4.01 * 2.01
8.060099999999998
>>> Decimal('4.01').mul('2.01').toNumber()
8.0601
>>> Decimal.mul('4.01', '2.01').toNumber()
8.0601
```

Can I help?

Of course you can, I suck at math, and this implementation is very naive.
If you are a math Guru and you see something wrong or a
way to simplify things you can send in a pull request.Methods

## Decimal(n)

Create a new`Decimal`

from `n`

. `n`

can be a string, integer, or
another `Decimal`

.## .toString()

Returns the`Decimal`

instance as a string.## .toNumber()

Turn a`Decimal`

into a `Number`

.## .add(n)

Return a new`Decimal`

containing the instance value plus `n`

.## .sub(n)

Return a new`Decimal`

containing the instance value minus `n`

.## .mul(n)

Return a new`Decimal`

containing the instance value multiplied by `n`

.## .div(n)

Return a new`Decimal`

containing the instance value integrally divided by `n`

.