https://github.com/stdlib-js/math-base-special-rad2degf
Convert an angle from radians to degrees (single-precision).
https://github.com/stdlib-js/math-base-special-rad2degf
angle convert degrees geometry javascript math mathematics node node-js nodejs radians stdlib trig trigonometry
Last synced: 6 months ago
JSON representation
Convert an angle from radians to degrees (single-precision).
- Host: GitHub
- URL: https://github.com/stdlib-js/math-base-special-rad2degf
- Owner: stdlib-js
- License: apache-2.0
- Created: 2024-04-05T22:41:59.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2025-04-07T07:17:10.000Z (6 months ago)
- Last Synced: 2025-04-12T17:57:12.083Z (6 months ago)
- Topics: angle, convert, degrees, geometry, javascript, math, mathematics, node, node-js, nodejs, radians, stdlib, trig, trigonometry
- Language: Python
- Homepage: https://github.com/stdlib-js/stdlib
- Size: 209 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Citation: CITATION.cff
- Security: SECURITY.md
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README
About stdlib...
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# rad2degf
[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]
> Convert an angle from radians to degrees (single-precision).
## Installation
```bash
npm install @stdlib/math-base-special-rad2degf
```
Alternatively,
- To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]).
- If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions).
- For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]).
The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships.
To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.
## Usage
```javascript
var rad2degf = require( '@stdlib/math-base-special-rad2degf' );
```
#### rad2degf( x )
Converts an angle from radians to degrees (single-precision).
```javascript
var d = rad2degf( 3.141592653589793 / 2.0 );
// returns 90.0
d = rad2degf( -3.141592653589793 / 4.0 );
// returns -45.0
d = rad2degf( NaN );
// returns NaN
```
## Notes
- Due to finite precision, canonical values may not be returned. For example,
```javascript
var d = rad2degf( 3.141592653589793 / 6.0 );
// returns 30.000001907348633
```
## Examples
```javascript
var randu = require( '@stdlib/random-base-randu' );
var TWO_PI = require( '@stdlib/constants-float32-two-pi' );
var rad2degf = require( '@stdlib/math-base-special-rad2degf' );
var r;
var d;
var i;
for ( i = 0; i < 100; i++ ) {
r = randu() * TWO_PI;
d = rad2degf( r );
console.log( 'radians: %d => degrees: %d', r, d );
}
```
* * *
## C APIs
### Usage
```c
#include "stdlib/math/base/special/rad2degf.h"
```
#### stdlib_base_rad2degf( x )
Converts an angle from radians to degrees (single-precision).
```c
float x = 3.141592653589793f / 2.0f;
float d = stdlib_base_rad2degf( x );
// returns 90.0f
x = -3.141592653589793f / 4.0f;
d = stdlib_base_rad2degf( x );
// returns -45.0f
```
The function accepts the following arguments:
- **x**: `[in] float` input value (in radians).
```c
float stdlib_base_rad2degf( const float x );
```
### Examples
```c
#include "stdlib/math/base/special/rad2degf.h"
#include "stdlib/constants/float32/two_pi.h"
#include
#include
int main( void ) {
float x;
float d;
int i;
for ( i = 0; i < 100; i++ ) {
x = (float)rand() / (float)RAND_MAX * STDLIB_CONSTANT_FLOAT32_TWO_PI;
d = stdlib_base_rad2degf( x );
printf( "radians: %f => degrees: %f\n", x, d );
}
}
```
* * *
## See Also
- [`@stdlib/math-base/special/rad2deg`][@stdlib/math/base/special/rad2deg]: convert an angle from radians to degrees.
* * *
## Notice
This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].
#### Community
[![Chat][chat-image]][chat-url]
---
## License
See [LICENSE][stdlib-license].
## Copyright
Copyright © 2016-2025. The Stdlib [Authors][stdlib-authors].
[npm-image]: http://img.shields.io/npm/v/@stdlib/math-base-special-rad2degf.svg
[npm-url]: https://npmjs.org/package/@stdlib/math-base-special-rad2degf
[test-image]: https://github.com/stdlib-js/math-base-special-rad2degf/actions/workflows/test.yml/badge.svg?branch=main
[test-url]: https://github.com/stdlib-js/math-base-special-rad2degf/actions/workflows/test.yml?query=branch:main
[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/math-base-special-rad2degf/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/math-base-special-rad2degf?branch=main
[chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg
[chat-url]: https://app.gitter.im/#/room/#stdlib-js_stdlib:gitter.im
[stdlib]: https://github.com/stdlib-js/stdlib
[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors
[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/math-base-special-rad2degf/tree/deno
[deno-readme]: https://github.com/stdlib-js/math-base-special-rad2degf/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/math-base-special-rad2degf/tree/umd
[umd-readme]: https://github.com/stdlib-js/math-base-special-rad2degf/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/math-base-special-rad2degf/tree/esm
[esm-readme]: https://github.com/stdlib-js/math-base-special-rad2degf/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/math-base-special-rad2degf/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/math-base-special-rad2degf/main/LICENSE
[@stdlib/math/base/special/rad2deg]: https://github.com/stdlib-js/math-base-special-rad2deg