README

sswap

Interchange two single-precision floating-point vectors.

Installation

npm install @stdlib/blas-sswap

Usage

var sswap = require( '@stdlib/blas-sswap' );

sswap( x, y )

Interchanges two single-precision floating-point vectors x and y.

var Float32Array = require( '@stdlib/array-float32' );
var array = require( '@stdlib/ndarray-array' );

var x = array( new Float32Array( [ 4.0, 2.0, -3.0, 5.0, -1.0 ] ) );
var y = array( new Float32Array( [ 2.0, 6.0, -1.0, -4.0, 8.0 ] ) );

sswap( x, y );

var xbuf = x.data;
// returns <Float32Array>[ 2.0, 6.0, -1.0, -4.0, 8.0 ]

var ybuf = y.data;
// returns <Float32Array>[ 4.0, 2.0, -3.0, 5.0, -1.0 ]

The function has the following parameters:

x: a 1-dimensional ndarray whose underlying data type is float32.
y: a 1-dimensional ndarray whose underlying data type is float32.

Notes

sswap() provides a higher-level interface to the BLAS level 1 function sswap.

Examples

var discreteUniform = require( '@stdlib/random-base-discrete-uniform' );
var Float32Array = require( '@stdlib/array-float32' );
var array = require( '@stdlib/ndarray-array' );
var sswap = require( '@stdlib/blas-sswap' );

var x = array( new Float32Array( 10 ) );
var y = array( new Float32Array( 10 ) );

var rand1 = discreteUniform.factory( 0, 100 );
var rand2 = discreteUniform.factory( 0, 10 );

var i;
for ( i = 0; i < x.length; i++ ) {
    x.set( i, rand1() );
    y.set( i, rand2() );
}
console.log( x.data );
console.log( y.data );

sswap( x, y );
console.log( x.data );
console.log( y.data );

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

License

See LICENSE.

@stdlib/blas-sswap

Usage no npm install needed!