@stdlib/math-base-special-asecdf/lib/main.js

Compute the arcsecant (in degrees) of a single-precision floating-point number.

/**
* @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.
*/

'use strict';

// MODULES //

var rad2degf = require( '@stdlib/math-base-special-rad2degf' );
var asecf = require( '@stdlib/math-base-special-asecf' );
var float64ToFloat32 = require( '@stdlib/number-float64-base-to-float32' );


// MAIN //

/**
* Computes the arcsecant (in degrees) of a single-precision floating-point number.
*
* @param {number} x - input value
* @returns {number} arcsecant (in degrees)
*
* @example
* var v = asecdf( Infinity );
* // returns 90.0
*
* @example
* var v = asecdf( 2.0  );
* // returns ~60.0
*
* @example
* var sqrtf = require( '@stdlib/math-base-special-sqrtf' );
*
* var v = asecdf( 2.0 * sqrtf( 3.0 ) / 3.0 );
* // returns ~30.0
*
* @example
* var sqrtf = require( '@stdlib/math-base-special-sqrtf' );
*
* var v = asecdf( sqrtf( 2.0 ) );
* // returns 45.0
*
* @example
* var v = asecdf( 1.0 );
* // returns 0.0
*
* @example
* var v = asecdf( NaN );
* // returns NaN
*/
function asecdf( x ) {
	return rad2degf( asecf( float64ToFloat32( x ) ) );
}


// EXPORTS //

module.exports = asecdf;