Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 4004x 4004x 1x 1x 4003x 4004x 1x 1x 1x 1x 1x | /**
* @license Apache-2.0
*
* Copyright (c) 2026 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
var expf = require( '@stdlib/math/base/special/expf' );
// MAIN //
/**
* Evaluates the standard logistic function for a single-precision floating-point number.
*
* @param {number} x - input value
* @returns {number} function value
*
* @example
* var y = expitf( 0.0 );
* // returns 0.5
*
* @example
* var y = expitf( 1.0 );
* // returns ~0.731
*
* @example
* var y = expitf( -1.0 );
* // returns ~0.269
*
* @example
* var y = expitf( Infinity );
* // returns 1.0
*
* @example
* var y = expitf( -Infinity );
* // returns 0.0
*
* @example
* var y = expitf( NaN );
* // returns NaN
*/
function expitf( x ) {
if ( isnanf( x ) ) {
return NaN;
}
return float64ToFloat32( 1.0 / float64ToFloat32( 1.0 + expf( -x ) ) );
}
// EXPORTS //
module.exports = expitf;
|