npm install compute-rad2degrad2deg
===
[![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Coverage Status][coveralls-image]][coveralls-url] [![Dependencies][dependencies-image]][dependencies-url]
> Converts radians to degrees.
`` bash`
$ npm install compute-rad2deg
For use in the browser, use browserify.
To use the module,
` javascript`
var rad2deg = require( 'compute-rad2deg' );
#### rad2deg( x )
Converts radians to degrees. x may be either a numeric array or a single numeric value.
` javascript
// Single value:
var deg = rad2deg( Math.PI/2 );
// returns 90
// Array of values:
var rads = [ 0, Math.PI/4, Math.PI/2, 3*Math.PI/4, Math.PI ];
rad2deg( rads );
// returns [ 0, 45, 90, 135, 180 ]
`
` javascript
var rad2deg = require( 'compute-rad2deg' );
// Simulate some data...
var data = new Array( 100 );
var twopi = 2*Math.PI;
for ( var i = 0; i < data.length; i++ ) {
data[ i ] = Math.random()*twopi;
}
rad2deg( data );
console.log( data.join( '\n' ) );
`
To run the example code from the top-level application directory,
` bash`
$ node ./examples/index.js
* If provided an input array, the array is mutated. If mutation is undesired,
` javascript
var data = [ 0, 45, 90, 135, 180 ],
copy = data.slice();
rad2deg( copy );
`
* If provided an empty array, the function returns null.
* __Beware__ of floating point errors.
` javascript`
var deg = rad2deg( Math.PI / 6 );
// returns 29.999999999999996 instead of 30
Unit tests use the Mocha test framework with Chai assertions. To run the tests, execute the following command in the top-level application directory:
` bash`
$ make test
All new feature development should have corresponding unit tests to validate correct functionality.
This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:
` bash`
$ make test-cov
Istanbul creates a ./reports/coverage directory. To access an HTML version of the report,
` bash``
$ make view-cov
---
Copyright © 2014. Athan Reines.
[npm-image]: http://img.shields.io/npm/v/compute-rad2deg.svg
[npm-url]: https://npmjs.org/package/compute-rad2deg
[travis-image]: http://img.shields.io/travis/compute-io/rad2deg/master.svg
[travis-url]: https://travis-ci.org/compute-io/rad2deg
[coveralls-image]: https://img.shields.io/coveralls/compute-io/rad2deg/master.svg
[coveralls-url]: https://coveralls.io/r/compute-io/rad2deg?branch=master
[dependencies-image]: http://img.shields.io/david/compute-io/rad2deg.svg
[dependencies-url]: https://david-dm.org/compute-io/rad2deg
[dev-dependencies-image]: http://img.shields.io/david/dev/compute-io/rad2deg.svg
[dev-dependencies-url]: https://david-dm.org/dev/compute-io/rad2deg
[github-issues-image]: http://img.shields.io/github/issues/compute-io/rad2deg.svg
[github-issues-url]: https://github.com/compute-io/rad2deg/issues