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@stdlib/math-base-special-asecdf

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

https://github.com/stdlib-js/math-base-special-asecdf

Science Score: 44.0%

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arcsecant asec degree inverse javascript math mathematics node node-js nodejs radians secant stdlib trig trigonometry
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Compute the arcsecant (in degrees) of a single-precision floating-point number.

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arcsecant asec degree inverse javascript math mathematics node node-js nodejs radians secant stdlib trig trigonometry
Created almost 2 years ago · Last pushed 7 months ago
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README.md

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asecdf

NPM version Build Status Coverage Status <!-- dependencies -->

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

## Installation ```bash npm install @stdlib/math-base-special-asecdf ``` Alternatively, - To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]). - If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions). - For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]). The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships. To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.
## Usage ```javascript var asecdf = require( '@stdlib/math-base-special-asecdf' ); ``` #### asecdf( x ) Computes the [arcsecant][arcsecant] (in degrees) of a single-precision floating-point number. ```javascript var sqrtf = require( '@stdlib/math-base-special-sqrtf' ); var v = asecdf( Infinity ); // returns 90.0 v = asecdf( 2.0 * sqrtf( 3.0 ) / 3.0 ); // returns ~30.0 v = asecdf( sqrtf( 2.0 ) ); // returns 45.0 v = asecdf( 2.0 ); // returns ~60.0 v = asecdf( 1.0 ); // returns 0.0 v = asecdf( NaN ); // returns NaN ``` The domain of `x` is restricted to the intervals `[-inf, -1]` and `[1, inf]`. For `x` outside of these intervals, the function returns `NaN`. ```javascript var v = asecdf( -0.5 ); // returns NaN v = asecdf( 0.5 ); // returns NaN ```
## Examples ```javascript var uniform = require( '@stdlib/random-array-uniform' ); var logEachMap = require( '@stdlib/console-log-each-map' ); var asecdf = require( '@stdlib/math-base-special-asecdf' ); var x = uniform( 100, 1.1, 5.1, { 'dtype': 'float32' }); logEachMap( 'asecdf(%0.4f) = %0.4f', x, asecdf ); ```
## C APIs
### Usage ```c #include "stdlib/math/base/special/asecdf.h" ``` #### stdlib_base_asecdf( x ) Computes the [arcsecant][arcsecant] (in degrees) of a single-precision floating-point number. ```c float out = stdlib_base_asecdf( 1.0f ); // returns 0.0f out = stdlib_base_asecdf( 2.0f ); // returns ~60.0f ``` The function accepts the following arguments: - **x**: `[in] float` input value. ```c float stdlib_base_asecdf( const float x ); ```
### Examples ```c #include "stdlib/math/base/special/asecdf.h" #include int main( void ) { const float x[] = { 1.1f, 1.55f, 1.99f, 2.44f, 2.88f, 3.32f, 3.77f, 4.21f, 4.66f, 5.1f }; float v; int i; for ( i = 0; i < 10; i++ ) { v = stdlib_base_asecdf( x[ i ] ); printf( "acscd(%f) = %f\n", x[ i ], v ); } } ```

* * * ## See Also - [`@stdlib/math-base/special/asec`][@stdlib/math/base/special/asec]: compute the inverse (arc) secant of a number. - [`@stdlib/math-base/special/asech`][@stdlib/math/base/special/asech]: compute the hyperbolic arcsecant of a number. - [`@stdlib/math-base/special/acosdf`][@stdlib/math/base/special/acosdf]: compute the arccosine (in degrees) of a single-precision floating-point number.
* * * ## Notice This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more. For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib]. #### Community [![Chat][chat-image]][chat-url] --- ## License See [LICENSE][stdlib-license]. ## Copyright Copyright © 2016-2025. The Stdlib [Authors][stdlib-authors].

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Standard library for JavaScript.

Citation (CITATION.cff) 

cff-version: 1.2.0
title: stdlib
message: >-
  If you use this software, please cite it using the
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type: software

authors:
  - name: The Stdlib Authors
    url: https://github.com/stdlib-js/stdlib/graphs/contributors

repository-code: https://github.com/stdlib-js/stdlib
url: https://stdlib.io

abstract: |
  Standard library for JavaScript and Node.js.

keywords:
  - JavaScript
  - Node.js
  - TypeScript
  - standard library
  - scientific computing
  - numerical computing
  - statistical computing

license: Apache-2.0 AND BSL-1.0

date-released: 2016

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npmjs.org: @stdlib/math-base-special-asecdf

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

  • Homepage: https://stdlib.io
  • License: Apache-2.0
  • Latest release: 0.0.2
    published over 1 year ago
  • Versions: 2
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Dependent packages count: 42.1%
Downloads: 55.2%
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