@stdlib/math-base-special-log1p

v0.2.3

Evaluate the natural logarithm of 1+x. For more information about how to use this package see README

Latest version published 3 months ago

License: Apache-2.0

NPM

GitHub

Package Health Score

71 / 100

security
No known security issues
popularity
Recognized
maintenance
Sustainable
community
Sustainable

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Security

No known security issues

All security vulnerabilities belong to production dependencies of direct and indirect packages.

Security and license risk for significant versions

All Versions

Version				Vulnerabilities	License Risk
0.2.3	\|	07/2024		0 C 0 H 0 M 0 L	0 H 0 M 0 L
0.1.1	\|	10/2023	Popular	0 C 0 H 0 M 0 L	0 H 0 M 0 L
0.0.6	\|	02/2022		0 C 0 H 0 M 0 L	0 H 0 M 0 L

License

Apache-2.0

Security Policy

Yes

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Popularity

Recognized

Weekly Downloads (44,730)

GitHub Stars: 1
Forks: 0
Contributors: -

Direct Usage Popularity

The npm package @stdlib/math-base-special-log1p receives a total of 44,730 downloads a week. As such, we scored @stdlib/math-base-special-log1p popularity level to be Recognized.

Based on project statistics from the GitHub repository for the npm package @stdlib/math-base-special-log1p, we found that it has been starred 1 times.

Downloads are calculated as moving averages for a period of the last 12 months, excluding weekends and known missing data points.

Community

Sustainable

Readme.md: Yes
Contributing.md: Yes
Code of Conduct: Yes
Contributors: 0
Funding: Yes

This project has seen only 10 or less contributors.

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Maintenance

Sustainable

Commit Frequency

Open Issues: 0
Open PR: 0
Last Release: 3 months ago
Last Commit: 1 month ago

Further analysis of the maintenance status of @stdlib/math-base-special-log1p based on released npm versions cadence, the repository activity, and other data points determined that its maintenance is Sustainable.

We found that @stdlib/math-base-special-log1p demonstrates a positive version release cadence with at least one new version released in the past 12 months.

In the past month we didn't find any pull request activity or change in issues status has been detected for the GitHub repository.

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Package

Node.js Compatibility: >=0.10.0

Age: 3 years
Dependencies: 8 Direct
Versions: 13
Install Size: 66.4 kB
Dist-tags: 1
# of Files: 17
Maintainers: 4
TS Typings: No

@stdlib/math-base-special-log1p has more than a single and default latest tag published for the npm package. This means, there may be other tags available for this package, such as next to indicate future releases, or stable to indicate stable releases.

Readme

About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

log1p

$NPM version$ $Coverage Status$

> Evaluate the natural logarithm of 1+x.

Installation

npm install @stdlib/math-base-special-log1p

Usage

var log1p = require( '@stdlib/math-base-special-log1p' );

log1p( x )

Evaluates the natural logarithm of 1+x.

var v = log1p( 4.0 );
// returns ~1.609

v = log1p( -1.0 );
// returns -Infinity

v = log1p( Infinity );
// returns Infinity

v = log1p( 0.0 );
// returns 0.0

v = log1p( -0.0 );
// returns -0.0

v = log1p( NaN );
// returns NaN

For x < -1, the function returns NaN, as the natural logarithm is not defined for negative numbers.

var v = log1p( -2.0 );
// returns NaN

Examples

var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var log1p = require( '@stdlib/math-base-special-log1p' );

var x;
var i;

for ( i = 0; i &lt; 100; i++ ) {
    x = round( randu() * 100.0 );
    console.log( log1p( x ) );
}

C APIs

Usage

#include "stdlib/math/base/special/log1p.h"

stdlib_base_log1p( x )

Evaluates the natural logarithm of 1+x.

double out = stdlib_base_log1p( 4.0 );
// returns ~1.609

out = stdlib_base_log1p( -1.0 );
// returns -Infinity

The function accepts the following arguments:

x: [in] double input value.

double stdlib_base_log1p( const double x );

Examples

#include "stdlib/math/base/special/log1p.h"
#include 
#include 

int main( void ) {
    double x;
    double v;
    int i;
    
    for ( i = 0; i &lt; 100; i++ ) {
        x = ( (double)rand() / (double)RAND_MAX ) * 100.0;
        v = stdlib_base_log1p( x );
        printf( "log1p(%lf) = %lf\n", x, v );
    }
}

Notice

This package is part of 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, see the main project repository.

Community

Copyright

@stdlib/math-base-special-log1p dependencies

@stdlib/constants-float64-exponent-bias @stdlib/constants-float64-ninf @stdlib/constants-float64-pinf @stdlib/math-base-assert-is-nan @stdlib/math-base-napi-unary @stdlib/number-float64-base-get-high-word @stdlib/number-float64-base-set-high-word @stdlib/utils-library-manifest

FAQs

What is @stdlib/math-base-special-log1p?

Evaluate the natural logarithm of 1+x. Visit Snyk Advisor to see a full health score report for @stdlib/math-base-special-log1p, including popularity, security, maintenance & community analysis.

Is @stdlib/math-base-special-log1p popular?

The npm package @stdlib/math-base-special-log1p receives a total of 44,730 weekly downloads. As such, @stdlib/math-base-special-log1p popularity was classified as a recognized. Visit the popularity section on Snyk Advisor to see the full health analysis.

Is @stdlib/math-base-special-log1p well maintained?

We found indications that @stdlib/math-base-special-log1p maintenance is sustainable demonstrating some project activity. We saw a total of 0 open source contributors collaborating on the project. See the full package health analysis to learn more about the package maintenance status.

Is @stdlib/math-base-special-log1p safe to use?

The npm package @stdlib/math-base-special-log1p was scanned for known vulnerabilities and missing license, and no issues were found. Thus the package was deemed as safe to use. See the full health analysis review.

Last updated on 9 October-2024, at 19:31 (UTC).

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Readme

log1p

Installation

Usage

log1p( x )

Examples

C APIs

Usage

stdlib_base_log1p( x )

Examples

See Also

Notice

Community

Copyright

@stdlib/math-base-special-log1p dependencies

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