https://github.com/jcoreio/ulp

Math.nextAfter, Math.nextDown, Math.nextUp, Math.ulp in javascript
https://github.com/jcoreio/ulp

Last synced: 11 months ago
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Math.nextAfter, Math.nextDown, Math.nextUp, Math.ulp in javascript

• Host: GitHub
• URL: https://github.com/jcoreio/ulp
• Owner: jcoreio
• License: mit
• Created: 2017-02-02T22:37:37.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2017-10-07T21:41:22.000Z (over 8 years ago)
• Last Synced: 2024-11-09T14:50:22.295Z (over 1 year ago)
• Language: JavaScript
• Homepage:
• Size: 96.7 KB
• Stars: 5
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

          
# ulp

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Math.nextDown, Math.nextUp, Math.ulp in javascript (from https://gist.github.com/Yaffle/4654250)

## `nextUp(x: number): number`

Returns the smallest floating-point number greater than `x`.

**Denormalized values may not be supported.**

```js

var nextUp = require('ulp').nextUp

nextUp(1) // 1.0000000000000002

```

## `nextDown(x: number): number`

Returns the largest floating-point number less than `x`.

**Denormalized values may not be supported.**

```js

var nextDown = require('ulp').nextDown

nextDown(1) // 0.9999999999999999

```

## `ulp(x: number): number`

Returns the unit in the last place of `x`.

**Denormalized values may not be supported.**

```js

var ulp = require('ulp').ulp

ulp(1) // 1.1102230246251565e-16

```

## `monkeypatch(): void`

Monkeypatches `nextUp`, `nextDown`, and `ulp` onto `Math`.

```js

require('ulp').monkeypatch()

Math.nextUp(1) // 1.0000000000000002

Math.nextDown(1) // 0.9999999999999999

Math.ulp(1) // 1.1102230246251565e-16

```