@stdlib/math-base-special-fresnels
Version:
Compute the Fresnel integral S(x).
53 lines (47 loc) • 1.12 kB
TypeScript
/*
* @license Apache-2.0
*
* Copyright (c) 2019 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.
*/
// TypeScript Version: 4.1
/**
* Computes the Fresnel integral S(x).
*
* @param x - input value
* @returns S(x)
*
* @example
* var v = fresnels( 0.0 );
* // returns 0.0
*
* @example
* var v = fresnels( 1.0 );
* // returns ~0.438
*
* @example
* var v = fresnels( Infinity );
* // returns ~0.5
*
* @example
* var v = fresnels( -Infinity );
* // returns ~-0.5
*
* @example
* var v = fresnels( NaN );
* // returns NaN
*/
declare function fresnels( x: number ): number;
// EXPORTS //
export = fresnels;