index.js (1355B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2018 The Stdlib Authors. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 'use strict'; 20 21 /** 22 * Return an integer corresponding to the unbiased exponent of a single-precision floating-point number. 23 * 24 * @module @stdlib/number/float32/base/exponent 25 * 26 * @example 27 * var exponent = require( '@stdlib/number/float32/base/exponent' ); 28 * var toFloat32 = require( '@stdlib/number/float64/base/to-float32' ); 29 * 30 * var exp = exponent( toFloat32( 3.14e34 ) ); 31 * // returns 114 => 2**114 ~ 2.08e34 32 * 33 * exp = exponent( toFloat32( 3.14e-34 ) ); 34 * // returns -112 => 2**-112 ~ 1.93e-34 35 * 36 * exp = exponent( toFloat32( -3.14 ) ); 37 * // returns 1 38 * 39 * exp = exponent( 0 ); 40 * // returns 0 41 * 42 * exp = exponent( NaN ); 43 * // returns 128 44 */ 45 46 // MODULES // 47 48 var exponent = require( './main.js' ); 49 50 51 // EXPORTS // 52 53 module.exports = exponent;