time-to-botec

Benchmark sampling in different programming languages
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README.md (1845B)

      1 <!--
      2 
      3 @license Apache-2.0
      4 
      5 Copyright (c) 2018 The Stdlib Authors.
      6 
      7 Licensed under the Apache License, Version 2.0 (the "License");
      8 you may not use this file except in compliance with the License.
      9 You may obtain a copy of the License at
     10 
     11    http://www.apache.org/licenses/LICENSE-2.0
     12 
     13 Unless required by applicable law or agreed to in writing, software
     14 distributed under the License is distributed on an "AS IS" BASIS,
     15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     16 See the License for the specific language governing permissions and
     17 limitations under the License.
     18 
     19 -->
     20 
     21 # ceil2
     22 
     23 > Round a numeric value to the nearest power of two toward positive infinity.
     24 
     25 <section class="usage">
     26 
     27 ## Usage
     28 
     29 ```javascript
     30 var ceil2 = require( '@stdlib/math/base/special/ceil2' );
     31 ```
     32 
     33 #### ceil2( x )
     34 
     35 Rounds a `numeric` value to the nearest power of two toward positive infinity.
     36 
     37 ```javascript
     38 var v = ceil2( -4.2 );
     39 // returns -4.0
     40 
     41 v = ceil2( -4.5 );
     42 // returns -4.0
     43 
     44 v = ceil2( -4.6 );
     45 // returns -4.0
     46 
     47 v = ceil2( 9.99999 );
     48 // returns 16.0
     49 
     50 v = ceil2( 9.5 );
     51 // returns 16.0
     52 
     53 v = ceil2( 13.0 );
     54 // returns 16.0
     55 
     56 v = ceil2( -13.0 );
     57 // returns -8.0
     58 
     59 v = ceil2( 0.0 );
     60 // returns 0.0
     61 
     62 v = ceil2( -0.0 );
     63 // returns -0.0
     64 
     65 v = ceil2( Infinity );
     66 // returns Infinity
     67 
     68 v = ceil2( -Infinity );
     69 // returns -Infinity
     70 
     71 v = ceil2( NaN );
     72 // returns NaN
     73 ```
     74 
     75 </section>
     76 
     77 <!-- /.usage -->
     78 
     79 <section class="examples">
     80 
     81 ## Examples
     82 
     83 <!-- eslint no-undef: "error" -->
     84 
     85 ```javascript
     86 var randu = require( '@stdlib/random/base/randu' );
     87 var ceil2 = require( '@stdlib/math/base/special/ceil2' );
     88 
     89 var x;
     90 var v;
     91 var i;
     92 
     93 for ( i = 0; i < 100; i++ ) {
     94     x = (randu()*100.0) - 50.0;
     95     v = ceil2( x );
     96     console.log( 'Value: %d. Rounded: %d.', x, v );
     97 }
     98 ```
     99 
    100 </section>
    101 
    102 <!-- /.examples -->
    103 
    104 <section class="links">
    105 
    106 </section>
    107 
    108 <!-- /.links -->