README.md (3118B)
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 # Complex Numbers 22 23 > Create a complex number. 24 25 <!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. --> 26 27 <section class="intro"> 28 29 </section> 30 31 <!-- /.intro --> 32 33 <!-- Package usage documentation. --> 34 35 <section class="usage"> 36 37 ## Usage 38 39 ```javascript 40 var complex = require( '@stdlib/complex/cmplx' ); 41 ``` 42 43 #### complex( real, imag\[, dtype] ) 44 45 Creates a complex number, where `real` and `imag` are the **real** and **imaginary** components, respectively. 46 47 ```javascript 48 var z = complex( 5.0, 3.0 ); 49 // returns <Complex128> 50 ``` 51 52 By default, the function returns a [128-bit complex number][@stdlib/complex/float64]. To specify an alternative underlying data type, set the `dtype` parameter to one of the following: 53 54 - [`'float64'`][@stdlib/complex/float64]: https://www.npmjs.com/package/@stdlib/complex/tree/main/float64 55 - [`'float32'`][@stdlib/complex/float32]: https://www.npmjs.com/package/@stdlib/complex/tree/main/float32 56 57 ```javascript 58 var z = complex( 5.0, 3.0, 'float32' ); 59 // returns <Complex64> 60 ``` 61 62 </section> 63 64 <!-- /.usage --> 65 66 <!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> 67 68 <section class="notes"> 69 70 </section> 71 72 <!-- /.notes --> 73 74 <!-- Package usage examples. --> 75 76 <section class="examples"> 77 78 ## Examples 79 80 <!-- eslint no-undef: "error" --> 81 82 ```javascript 83 var randu = require( '@stdlib/random/base/randu' ); 84 var round = require( '@stdlib/math/base/special/round' ); 85 var complex = require( '@stdlib/complex/cmplx' ); 86 87 var re; 88 var im; 89 var z; 90 var i; 91 92 for ( i = 0; i < 100; i++ ) { 93 re = round( (randu()*100.0) - 50.0 ); 94 im = round( (randu()*100.0) - 50.0 ); 95 z = complex( re, im, 'float64' ); 96 console.log( z.toString() ); 97 } 98 ``` 99 100 </section> 101 102 <!-- /.examples --> 103 104 <!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> 105 106 <section class="references"> 107 108 </section> 109 110 <!-- /.references --> 111 112 <!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> 113 114 <section class="links"> 115 116 [@stdlib/complex/float64]: https://www.npmjs.com/package/@stdlib/complex/tree/main/float64 117 118 [@stdlib/complex/float32]: https://www.npmjs.com/package/@stdlib/complex/tree/main/float32 119 120 </section> 121 122 <!-- /.links -->