log1p
Computes the natural logarithm of
1+x
.
Installation
$ npm install math-float64-log1p
Usage
var log1p = ;
log1p( x )
Computes the natural logarithm of 1+x
.
var val = ;// returns ~1.609val = ;// returns -infinityval = ;// returns +infinity
For x < -1
, the function
returns NaN
, as the natural logarithm is not defined for negative numbers.
var val = ;// returns NaN
Examples
var round = ;var log1p = ;var x;var i;for i = 0; i < 100; i++x = ;console;
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
Copyright
Copyright © 2016. The Compute.io Authors.