number-uint32-base-mul

Perform C-like multiplication of two unsigned 32-bit integers.

https://github.com/stdlib-js/number-uint32-base-mul

Science Score: 44.0%

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Keywords

32-bit 32bit c imul integer javascript long math mathematics mult multiplication multiply node node-js nodejs stdlib uint uint32 umul unsigned

Last synced: 4 months ago · JSON representation ·

Repository

Perform C-like multiplication of two unsigned 32-bit integers.

Basic Info

Host: GitHub
Owner: stdlib-js
License: apache-2.0
Language: JavaScript
Default Branch: main
Homepage: https://github.com/stdlib-js/stdlib
Size: 355 KB

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32-bit 32bit c imul integer javascript long math mathematics mult multiplication multiply node node-js nodejs stdlib uint uint32 umul unsigned

Created 10 months ago · Last pushed 5 months ago

Metadata Files

Readme Changelog Contributing License Code of conduct Citation Security

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!

mul

Multiply two unsigned 32-bit integers.

## Installation ```bash npm install @stdlib/number-uint32-base-mul ``` Alternatively, - To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]). - If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions). - For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]). The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships. To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

## Usage ```javascript var mul = require( '@stdlib/number-uint32-base-mul' ); ``` #### mul( x, y ) Multiplies two unsigned 32-bit integers. ```javascript var v = mul( 10>>>0, 4>>>0 ); // returns 40 v = mul( 2147483648>>>0, 5>>>0 ); // 2^31 * 5 = 10737418240 => 32-bit integer overflow // returns 2147483648 ```

## Notes - The function performs C-like multiplication of two unsigned 32-bit integers, including wraparound semantics.

## Examples ```javascript var discreteUniform = require( '@stdlib/random-array-discrete-uniform' ); var logEachMap = require( '@stdlib/console-log-each-map' ); var mul = require( '@stdlib/number-uint32-base-mul' ); var opts = { 'dtype': 'uint32' }; // Create arrays of random values: var x = discreteUniform( 100, 0, 50, opts ); var y = discreteUniform( 100, 0, 50, opts ); // Perform element-wise multiplication: logEachMap( '%d * %d = %d', x, y, mul ); ```

## C APIs

### Usage ```c #include "stdlib/number/uint32/base/mul.h" ``` #### stdlib_base_uint32_mul( x, y ) Multiplies two unsigned 32-bit integers. ```c #include uint32_t v = stdlib_base_uint32_mul( 5, 2 ); // returns 10 ``` The function accepts the following arguments: - **x**: `[in] uint32_t` first input value. - **y**: `[in] uint32_t` second input value. ```c uint32_t stdlib_base_uint32_mul( const uint32_t x, const uint32_t y ); ```

### Examples ```c #include "stdlib/number/uint32/base/mul.h" #include #include int main( void ) { const uint32_t x[] = { 3, 5, 10, 12 }; const uint32_t y[] = { 6, 2, 11, 24 }; uint32_t z; int i; for ( i = 0; i < 4; i++ ) { z = stdlib_base_uint32_mul( x[ i ], y[ i ] ); printf( "%u * %u = %u\n", x[ i ], y[ i ], z ); } } ```

* * * ## Notice This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib]. #### Community [![Chat][chat-image]][chat-url] --- ## License See [LICENSE][stdlib-license]. ## Copyright Copyright © 2016-2025. The Stdlib [Authors][stdlib-authors].

Owner

Name: stdlib
Login: stdlib-js
Kind: organization

Website: https://stdlib.io
Twitter: stdlibjs
Repositories: 3,692
Profile: https://github.com/stdlib-js

Standard library for JavaScript.

Citation (CITATION.cff)

cff-version: 1.2.0
title: stdlib
message: >-
  If you use this software, please cite it using the
  metadata from this file.

type: software

authors:
  - name: The Stdlib Authors
    url: https://github.com/stdlib-js/stdlib/graphs/contributors

repository-code: https://github.com/stdlib-js/stdlib
url: https://stdlib.io

abstract: |
  Standard library for JavaScript and Node.js.

keywords:
  - JavaScript
  - Node.js
  - TypeScript
  - standard library
  - scientific computing
  - numerical computing
  - statistical computing

license: Apache-2.0 AND BSL-1.0

date-released: 2016

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