time-to-botec

README.md (3760B)

---

 <!--
 
 @license Apache-2.0
 
 Copyright (c) 2018 The Stdlib Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
    http://www.apache.org/licenses/LICENSE-2.0
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 
 -->
 
 # Absolute Value
 
 > Compute the [absolute value][absolute-value] of a double-precision floating-point number.
 
 <section class="intro">
 
 The [absolute value][absolute-value] is defined as
 
 <!-- <equation class="equation" label="eq:absolute_value" align="center" raw="|x| = \begin{cases} x & \textrm{if}\ x \geq 0 \\ -x & \textrm{if}\ x < 0\end{cases}" alt="Absolute value"> -->
 
 <div class="equation" align="center" data-raw-text="|x| = \begin{cases} x &amp; \textrm{if}\ x \geq 0 \\ -x &amp; \textrm{if}\ x &lt; 0\end{cases}" data-equation="eq:absolute_value">
     <img src="https://cdn.jsdelivr.net/gh/stdlib-js/stdlib@bb29798906e119fcb2af99e94b60407a270c9b32/lib/node_modules/@stdlib/math/base/special/abs/docs/img/equation_absolute_value.svg" alt="Absolute value">
     <br>
 </div>
 
 <!-- </equation> -->
 
 </section>
 
 <!-- /.intro -->
 
 <section class="usage">
 
 ## Usage
 
 ```javascript
 var abs = require( '@stdlib/math/base/special/abs' );
 ```
 
 #### abs( x )
 
 Computes the [absolute value][absolute-value] of a double-precision floating-point number.
 
 ```javascript
 var v = abs( -1.0 );
 // returns 1.0
 
 v = abs( 2.0 );
 // returns 2.0
 
 v = abs( 0.0 );
 // returns 0.0
 
 v = abs( -0.0 );
 // returns 0.0
 
 v = abs( NaN );
 // returns NaN
 ```
 
 </section>
 
 <!-- /.usage -->
 
 <section class="examples">
 
 ## Examples
 
 <!-- eslint no-undef: "error" -->
 
 ```javascript
 var randu = require( '@stdlib/random/base/randu' );
 var round = require( '@stdlib/math/base/special/round' );
 var abs = require( '@stdlib/math/base/special/abs' );
 
 var rand;
 var i;
 
 for ( i = 0; i < 100; i++ ) {
     rand = round( randu() * 100.0 ) - 50.0;
     console.log( 'abs(%d) = %d', rand, abs( rand ) );
 }
 ```
 
 </section>
 
 <!-- /.examples -->
 
 <!-- C interface documentation. -->
 
 * * *
 
 <section class="c">
 
 ## C APIs
 
 <!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
 
 <section class="intro">
 
 </section>
 
 <!-- /.intro -->
 
 <!-- C usage documentation. -->
 
 <section class="usage">
 
 ### Usage
 
 ```c
 #include "stdlib/math/base/special/abs.h"
 ```
 
 #### stdlib_base_abs( x )
 
 Computes the absolute value of a double-precision floating-point number.
 
 ```c
 double y = stdlib_base_abs( -5.0 );
 // returns 5.0
 ```
 
 The function accepts the following arguments:
 
 -   **x**: `[in] double` input value.
 
 ```c
 double stdlib_base_abs( const double x );
 ```
 
 </section>
 
 <!-- /.usage -->
 
 <!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
 
 <section class="notes">
 
 </section>
 
 <!-- /.notes -->
 
 <!-- C API usage examples. -->
 
 <section class="examples">
 
 ### Examples
 
 ```c
 #include "stdlib/math/base/special/abs.h"
 #include <stdio.h>
 
 int main() {
     double x[] = { 3.14, -3.14, 0.0, 0.0/0.0 };
 
     double y;
     int i;
     for ( i = 0; i < 4; i++ ) {
         y = stdlib_base_abs( x[ i ] );
         printf( "|%lf| = %lf\n", x[ i ], y );
     }
 }
 ```
 
 </section>
 
 <!-- /.examples -->
 
 </section>
 
 <!-- /.c -->
 
 <section class="links">
 
 [absolute-value]: https://en.wikipedia.org/wiki/Absolute_value
 
 </section>
 
 <!-- /.links -->