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# mul [![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] > Multiply two unsigned 32-bit integers.
## Installation ```bash npm install @stdlib/number-uint32-base-mul ```
## 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 ); } } ```
* * * ## See Also - [`@stdlib/number-int32/base/mul`][@stdlib/number/int32/base/mul]: perform C-like multiplication of two signed 32-bit integers.
* * * ## 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 © 2016-2026. The Stdlib [Authors][stdlib-authors].
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