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‎lib/node_modules/@stdlib/math/base/special/exp2f/LICENSE‎

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Copyright (c) 1984-2000 Stephen L. Moshier
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‎lib/node_modules/@stdlib/math/base/special/exp2f/README.md‎

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<!--
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@license Apache-2.0
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Copyright (c) 2024 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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# exp2f
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> Base `2` [exponential function][exponential-function] in single-precision floating-point format.
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<section class="usage">
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## Usage
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```javascript
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var exp2f = require( '@stdlib/math/base/special/exp2f' );
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```
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#### exp2f( x )
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Evaluates the base `2` [exponential function][exponential-function] in single-precision floating-point format.
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```javascript
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var v = exp2f( 3.0 );
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// returns 8.0
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v = exp2f( -9.0 );
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// returns ~0.002
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v = exp2f( 0.0 );
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// returns 1.0
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v = exp2f( NaN );
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// returns NaN
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```
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</section>
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<!-- /.usage -->
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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 randu = require( '@stdlib/random/base/randu' );
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var exp2f = require( '@stdlib/math/base/special/exp2f' );
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var x;
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var i;
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for ( i = 0; i < 100; i++ ) {
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x = ( randu() * 100.0 ) - 50.0;
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console.log( '2^%d = %d', x, exp2f( x ) );
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}
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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/exp2f.h"
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```
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#### stdlib_base_exp2f( x )
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Evaluates the base `2` [exponential function][exponential-function] in single-precision floating-point format.
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```c
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float out = stdlib_base_exp2f( 3.0f );
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// returns 8.0f
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out = stdlib_base_exp2f( -9.0f );
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// returns ~0.002f
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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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```c
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float stdlib_base_exp2f( const float x );
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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/exp2f.h"
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#include <stdlib.h>
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#include <stdio.h>
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int main( void ) {
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float x;
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float v;
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int i;
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for ( i = 0; i < 100; i++ ) {
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x = ( ( (float)rand() / (float)RAND_MAX ) * 100.0f ) - 50.0f;
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v = stdlib_base_exp2f( x );
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printf( "2^%f = %f\n", x, v );
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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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[exponential-function]: https://en.wikipedia.org/wiki/Exponential_function
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<!-- <related-links> -->
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<!-- </related-links> -->
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</section>
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<!-- /.links -->

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