math-cos

Computes the cosine of a number.
compute.io compute-io compute computation math.io math-io math mathematics math.cos cos cosine trig trigonometry radians


Summary

Project Name math-cos Project Url https://github.com/math-io/cos#readme
InceptionYear 2016-01-15 00:42:05 更新时间 2016-01-15 08:42:05
IssueManagement https://github.com/math-io/cos/issues Licenses MIT
仓库地址 git://github.com/math-io/cos.git 用户数 0
Node Engine 文件大小 2.6 KB
install test test-local test-ci test-cov test-browsers coverage

项目介绍

Cosine === [![NPM version][npm-image]][npm-url] [![Build Status][build-image]][build-url] [![Coverage Status][coverage-image]][coverage-url] [![Dependencies][dependencies-image]][dependencies-url] > Computes the [cosine][cosine] of a number. ## Installation ``` bash $ npm install math-cos ``` ## Usage ``` javascript var cos = require( 'math-cos' ); ``` #### cos( x ) Computes the [cosine][cosine] of a `number` (in radians). ``` javascript var val = cos( 0 ); // returns 1 val = cos( Math.PI/4 ); // returns ~0.707 val = cos( -Math.PI/6 ); // returns ~0.866 ``` ## Examples ``` javascript var linspace = require( 'compute-linspace' ); var cos = require( 'math-cos' ); var x = linspace( 0, 2*Math.PI, 100 ); var i; for ( i = 0; i < x.length; i++ ) { console.log( cos( x[ i ] ) ); } ``` To run the example code from the top-level application directory, ``` bash $ node ./examples/index.js ``` --- ## Tests ### Unit This repository uses [tape][tape] for unit tests. 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. ### Test Coverage This repository uses [Istanbul][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 ``` ### Browser Support This repository uses [Testling][testling] for browser testing. To run the tests in a (headless) local web browser, execute the following command in the top-level application directory: ``` bash $ make test-browsers ``` To view the tests in a local web browser, ``` bash $ make view-browser-tests ``` --- ## License [MIT license](http://opensource.org/licenses/MIT). ## Copyright Copyright © 2016. The [Compute.io][compute-io] Authors. [npm-image]: http://img.shields.io/npm/v/math-cos.svg [npm-url]: https://npmjs.org/package/math-cos [build-image]: http://img.shields.io/travis/math-io/cos/master.svg [build-url]: https://travis-ci.org/math-io/cos [coverage-image]: https://img.shields.io/codecov/c/github/math-io/cos/master.svg [coverage-url]: https://codecov.io/github/math-io/cos?branch=master [dependencies-image]: http://img.shields.io/david/math-io/cos.svg [dependencies-url]: https://david-dm.org/math-io/cos [dev-dependencies-image]: http://img.shields.io/david/dev/math-io/cos.svg [dev-dependencies-url]: https://david-dm.org/dev/math-io/cos [github-issues-image]: http://img.shields.io/github/issues/math-io/cos.svg [github-issues-url]: https://github.com/math-io/cos/issues [tape]: https://github.com/substack/tape [istanbul]: https://github.com/gotwarlost/istanbul [testling]: https://ci.testling.com [compute-io]: https://github.com/compute-io/ [cosine]: https://en.wikipedia.org/wiki/Cosine

开发依赖

GroupId ArtifactID Version 引用量
Codecov codecov 3.7.0 13337
Athan Reines compute-linspace 1.0.0 15
Krishnan Anantheswaran istanbul 0.4.5 223
Anton Kovalyov jshint 2.11.1 17837
Sindre Sorhus jshint-stylish 2.2.1 7572
Athan Reines math-abs 1.0.2 47
Scott Corgan tap-spec 5.0.0 4958
James Halliday tape 5.0.1 29771
James Halliday testling 1.7.3 674