time-to-botec

Benchmark sampling in different programming languages
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index.js (1603B)

      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 * Difference between one and the smallest value greater than one that can be represented as a single-precision floating-point number.
     23 *
     24 * @module @stdlib/constants/float32/eps
     25 * @type {number}
     26 *
     27 * @example
     28 * var FLOAT32_EPSILON = require( '@stdlib/constants/float32/eps' );
     29 * // returns 1.1920928955078125e-7
     30 */
     31 
     32 // MODULES //
     33 
     34 var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
     35 
     36 
     37 // MAIN //
     38 
     39 /**
     40 * Difference between one and the smallest value greater than one that can be represented as a single-precision floating-point number.
     41 *
     42 * ## Notes
     43 *
     44 * The difference is equal to
     45 *
     46 * ```tex
     47 * \frac{1}{2^{23}}
     48 * ```
     49 *
     50 * @constant
     51 * @type {number}
     52 * @default 1.1920928955078125e-7
     53 * @see [IEEE 754]{@link https://en.wikipedia.org/wiki/IEEE_754-1985}
     54 * @see [Machine Epsilon]{@link https://en.wikipedia.org/wiki/Machine_epsilon}
     55 */
     56 var FLOAT32_EPSILON = float64ToFloat32( 1.1920928955078125e-7 );
     57 
     58 
     59 // EXPORTS //
     60 
     61 module.exports = FLOAT32_EPSILON;