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‎docs/git-notes/ef0435b69f05fa6a8d0e7d4ee44c72e1ccff1dd9.txt‎

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---
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type: amend-message
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---
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feat: add Wald distribution PDF
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PR-URL: #9324
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Ref: #209
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Reviewed-by: Philipp Burckhardt <[email protected]>

‎lib/node_modules/@stdlib/math/base/special/fast/atanhf/README.md‎

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<section class="related">
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</section>
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<!-- /.related -->

‎lib/node_modules/@stdlib/math/base/special/roundnf/README.md‎

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<!--
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@license Apache-2.0
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Copyright (c) 2026 The Stdlib Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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# roundnf
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> Round a single-precision floating-point number to the nearest multiple of 10^n.
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<section class="usage">
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## Usage
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```javascript
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var roundnf = require( '@stdlib/math/base/special/roundnf' );
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```
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#### roundnf( x, n )
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Rounds a single-precision floating-point number to the nearest multiple of `10^n`.
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```javascript
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// Round a value to 2 decimal places:
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var v = roundnf( 3.1415927410125732, -2 );
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// returns ~3.14
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// If n = 0, `roundnf` behaves like `roundf`:
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v = roundnf( 3.1415927410125732, 0 );
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// returns 3.0
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// Round a value to the nearest thousand:
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v = roundnf( 12368.0, 3 );
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// returns ~12000.0
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```
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</section>
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<!-- /.usage -->
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<section class="notes">
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## Notes
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- When operating on [floating-point numbers][ieee754] in bases other than `2`, rounding to specified digits can be **inexact**. For example,
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```javascript
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var x = 0.2 + 0.1;
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// returns 0.30000000000000004
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// Should round to 0.3...
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var v = roundnf( x, -7 );
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// returns 0.30000001192092896
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```
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- Ties are rounded toward positive infinity.
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</section>
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<!-- /.notes -->
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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```javascript
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var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
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var uniform = require( '@stdlib/random/array/uniform' );
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var logEachMap = require( '@stdlib/console/log-each-map' );
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var roundnf = require( '@stdlib/math/base/special/roundnf' );
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var x = uniform( 100, -50.0, 50.0, {
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'dtype': 'float32'
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});
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var n = discreteUniform( 100, -5, 0, {
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'dtype': 'int32'
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});
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logEachMap( 'x: %0.8f. Number of decimals: %d. Rounded: %0.8f', x, n, roundnf );
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```
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</section>
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<!-- /.examples -->
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<!-- C interface documentation. -->
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* * *
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<section class="c">
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## C APIs
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<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
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<section class="intro">
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</section>
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<!-- /.intro -->
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<!-- C usage documentation. -->
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<section class="usage">
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### Usage
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```c
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#include "stdlib/math/base/special/roundnf.h"
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```
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#### stdlib_base_roundnf( x, n )
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Rounds a single-precision floating-point number to the nearest multiple of `10^n`.
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```c
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// Round a value to 2 decimal places:
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float y = stdlib_base_roundnf( 3.14159f, -2 );
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// returns ~3.14f
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// If n = 0, `roundnf` behaves like `roundf`:
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y = stdlib_base_roundnf( 3.14159f, 0 );
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// returns 3.0f
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```
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The function accepts the following arguments:
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- **x**: `[in] float` input value.
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- **n**: `[in] int32_t` integer power of 10.
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```c
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float stdlib_base_roundnf( const float x, const int32_t n );
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```
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</section>
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<!-- /.usage -->
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<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="notes">
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</section>
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<!-- /.notes -->
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<!-- C API usage examples. -->
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<section class="examples">
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### Examples
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```c
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#include "stdlib/math/base/special/roundnf.h"
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#include <stdio.h>
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int main( void ) {
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const float x[] = { 3.14f, -3.14f, 0.0f, 0.0f/0.0f };
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float y;
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int i;
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for ( i = 0; i < 4; i++ ) {
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y = stdlib_base_roundnf( x[ i ], -2 );
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printf( "roundnf(%f, -2) = %f\n", x[ i ], y );
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}
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}
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```
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</section>
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<!-- /.examples -->
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</section>
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<!-- /.c -->
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<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
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<section class="related">
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</section>
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<!-- /.related -->
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<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="links">
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[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985
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<!-- <related-links> -->
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<!-- </related-links> -->
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</section>
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<!-- /.links -->

‎lib/node_modules/@stdlib/math/base/special/roundnf/benchmark/benchmark.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2026 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var bench = require( '@stdlib/bench' );
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var uniform = require( '@stdlib/random/array/uniform' );
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var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
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var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
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var pkg = require( './../package.json' ).name;
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var roundnf = require( './../lib' );
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// MAIN //
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bench( pkg, function benchmark( b ) {
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var x;
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var n;
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var y;
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var i;
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x = uniform( 100, -100.0, 100.0, {
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'dtype': 'float32'
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});
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n = discreteUniform( 100, -5, 0, {
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'dtype': 'int32'
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});
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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y = roundnf( x[ i%x.length ], n[ i%n.length ] );
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if ( isnanf( y ) ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( isnanf( y ) ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});

‎lib/node_modules/@stdlib/math/base/special/roundnf/benchmark/benchmark.native.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2026 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var resolve = require( 'path' ).resolve;
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var bench = require( '@stdlib/bench' );
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var uniform = require( '@stdlib/random/array/uniform' );
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var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
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var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
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var tryRequire = require( '@stdlib/utils/try-require' );
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var format = require( '@stdlib/string/format' );
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var pkg = require( './../package.json' ).name;
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// VARIABLES //
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var roundnf = tryRequire( resolve( __dirname, './../lib/native.js' ) );
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var opts = {
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'skip': ( roundnf instanceof Error )
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};
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// MAIN //
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bench( format( '%s::native', pkg ), opts, function benchmark( b ) {
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var x;
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var n;
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var y;
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var i;
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x = uniform( 100, -100.0, 100.0, {
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'dtype': 'float32'
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});
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n = discreteUniform( 100, -5, 0, {
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'dtype': 'int32'
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});
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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y = roundnf( x[ i%x.length ], n[ i%n.length ] );
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if ( isnanf( y ) ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( isnanf( y ) ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});

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