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@stdlib/math-base-special-asind

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Compute the arcsine (in degrees) of a double-precision floating-point number.

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/* * @license Apache-2.0 * * Copyright (c) 2024 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 arcsine (in degrees) of a double-precision floating-point number. * * @param x - input value * @returns arcsine (in degrees) * * @example * var v = asind( 0.0 ); * // returns 0.0 * * @example * var v = asind( 0.5 ); * // returns ~30.0 * * @example * var sqrt = require( '@stdlib/math-base-special-sqrt' ); * * var v = asindf( sqrt( 2.0 ) / 2.0 ); * // returns ~45.0 * * @example * var sqrt = require( '@stdlib/math-base-special-sqrt' ); * ** var v = asindf( sqrt( 3.0 ) / 2.0 ); * // returns ~60.0 * * @example * var v = asind( NaN ); * // returns NaN */ declare function asind( x: number ): number; // EXPORTS // export = asind;