math-power

    1.0.0 • Public • Published

    Exponential Function

    NPM version Build Status Coverage Status Dependencies

    Exponential function.

    The exponential function is defined as

    Exponential function definition.

    where b is the base and x is the exponent.

    Installation

    $ npm install math-power

    Usage

    var pow = require( 'math-power' );

    pow( base, exponent )

    Evaluates the exponential function.

    var val = pow( 2, 3 );
    // returns 8
     
    val = pow( 4, 0.5 );
    // returns 2
     
    val = pow( 100, 0 );
    // returns 1
     
    val = pow( Math.PI, 5 );
    // returns ~306.0197
     
    val = pow( Math.PI, -1/5 );
    // returns ~0.7954
     
    val = pow( NaN, 3 );
    // returns NaN
     
    val = pow( 5, NaN );
    // returns NaN

    Examples

    var pow = require( 'math-power' );
     
    var b;
    var x;
    var i;
     
    for ( i = 0; i < 100; i++ ) {
        b = Math.round( Math.random()*10 );
        x = Math.round( Math.random()*10 ) - 5;
        console.log( '%d^%d = %d', b, x, pow( b, x ) );
    }

    To run the example code from the top-level application directory,

    $ node ./examples/index.js

    Tests

    Unit

    This repository uses tape for unit tests. To run the tests, execute the following command in the top-level application directory:

    $ make test

    All new feature development should have corresponding unit tests to validate correct functionality.

    Test Coverage

    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:

    $ make test-cov

    Istanbul creates a ./reports/coverage directory. To access an HTML version of the report,

    $ make view-cov

    Browser Support

    This repository uses Testling for browser testing. To run the tests in a (headless) local web browser, execute the following command in the top-level application directory:

    $ make test-browsers

    To view the tests in a local web browser,

    $ make view-browser-tests

    License

    MIT license.

    Copyright

    Copyright © 2016. The Compute.io Authors.

    Install

    npm i math-power

    DownloadsWeekly Downloads

    129

    Version

    1.0.0

    License

    MIT

    Last publish

    Collaborators

    • avatar