LAPACK routine to calculate sqrt(x^2 + y^2 + z^2) in a manner which doesn't cause unnecessary overflow.
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> LAPACK routine to calculate sqrt(x^2 + y^2 + z^2) in a manner which doesn't cause unnecessary overflow.
``bash`
npm install @stdlib/lapack-base-dlapy3
`javascript`
var dlapy3 = require( '@stdlib/lapack-base-dlapy3' );
#### dlapy3( x, y, z )
Computes sqrt(x^2 + y^2 + z^2) in a manner which doesn't cause unnecessary overflow.
`javascript`
var out = dlapy3( 3.0, 4.0, 12.0 );
// returns 13.0
The function has the following parameters:
- x: first input number.
- y: second input number.
- z: third input number.
- dlapy3() corresponds to the [LAPACK][LAPACK] function [dlapy3][lapack-dlapy3].
`javascript
var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var dlapy3 = require( '@stdlib/lapack-base-dlapy3' );
var opts = {
'dtype': 'float64'
};
var x = discreteUniform( 100, -50, 50, opts );
var y = discreteUniform( 100, -50, 50, opts );
var z = discreteUniform( 100, -50, 50, opts );
logEachMap( 'dlapy3( %d, %d, %d ) = %0.4f', x, y, z, dlapy3 );
`
*
`c`
TODO
#### TODO
TODO.
`c`
TODO
TODO
`c`
TODO
`c`
TODO
*
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/lapack-base-dlapy3/tree/deno
[deno-readme]: https://github.com/stdlib-js/lapack-base-dlapy3/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/lapack-base-dlapy3/tree/umd
[umd-readme]: https://github.com/stdlib-js/lapack-base-dlapy3/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/lapack-base-dlapy3/tree/esm
[esm-readme]: https://github.com/stdlib-js/lapack-base-dlapy3/blob/esm/README.md
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[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/lapack-base-dlapy3/main/LICENSE
[lapack]: https://www.netlib.org/lapack/explore-html/
[lapack-dlapy3]: https://netlib.org/lapack/explore-html/d3/dba/group__lapy3_ga7ba5106d26a131c0d1ac7fa7ca3904b7.html