62 lines
1.6 KiB
JavaScript
62 lines
1.6 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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/**
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* Difference between one and the smallest value greater than one that can be represented as a single-precision floating-point number.
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*
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* @module @stdlib/constants/float32/eps
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* @type {number}
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*
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* @example
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* var FLOAT32_EPSILON = require( '@stdlib/constants/float32/eps' );
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* // returns 1.1920928955078125e-7
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*/
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// MODULES //
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var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
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// MAIN //
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/**
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* Difference between one and the smallest value greater than one that can be represented as a single-precision floating-point number.
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*
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* ## Notes
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*
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* The difference is equal to
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*
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* ```tex
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* \frac{1}{2^{23}}
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* ```
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*
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* @constant
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* @type {number}
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* @default 1.1920928955078125e-7
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* @see [IEEE 754]{@link https://en.wikipedia.org/wiki/IEEE_754-1985}
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* @see [Machine Epsilon]{@link https://en.wikipedia.org/wiki/Machine_epsilon}
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*/
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var FLOAT32_EPSILON = float64ToFloat32( 1.1920928955078125e-7 );
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// EXPORTS //
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module.exports = FLOAT32_EPSILON;
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