hasAlmostEqualValues

Test if two arrays have respective elements which are approximately equal within a specified number of ULPs (units in the last place).

Installation

npm install @stdlib/array-base-assert-has-almost-equal-values

Usage

var hasAlmostEqualValues = require( '@stdlib/array-base-assert-has-almost-equal-values' );

hasAlmostEqualValues( x, y, maxULP )

Tests if two arrays have respective elements which are approximately equal within a specified number of ULPs (units in the last place).

var x = [ 0, 0, 1, 0 ];
var y = [ 0, 0, 1, 0 ];

var bool = hasAlmostEqualValues( x, y, 1 );
// returns true

Notes

• If provided arrays of unequal length, the function returns false.
• The function does not skip undefined elements and is thus not optimized for sparse arrays.

Examples

var uniform = require( '@stdlib/random-array-uniform' );
var Complex128Array = require( '@stdlib/array-complex128' );
var hasAlmostEqualValues = require( '@stdlib/array-base-assert-has-almost-equal-values' );

var buf = uniform( 10, 0, 10 );
// returns <Float64Array>

var x = new Complex128Array( buf );
// returns <Complex128Array>

var y = new Complex128Array( buf );
// returns <Complex128Array>

var out = hasAlmostEqualValues( x, y, 1 );
// returns true

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.

Copyright

Copyright © 2016-2026. The Stdlib Authors.