@stdlib/math-base-special-acovercos

Compute the inverse coversed cosine.

Usage no npm install needed!

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README

Arccovercosine

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Compute the inverse coversed cosine.

The inverse coversed cosine is defined as

Inverse coversed cosine.

Installation

npm install @stdlib/math-base-special-acovercos

Usage

var acovercos = require( '@stdlib/math-base-special-acovercos' );

acovercos( x )

Computes the inverse coversed cosine.

var v = acovercos( 0.0 );
// returns ~1.5708

v = acovercos( -3.141592653589793/2.0 );
// returns ~-0.6075

v = acovercos( -3.141592653589793/6.0 );
// returns ~0.4966

If x < -2, x > 0, or x is NaN, the function returns NaN.

var v = acovercos( 1.0 );
// returns NaN

v = acovercos( -3.14 );
// returns NaN

v = acovercos( NaN );
// returns NaN

Examples

var linspace = require( '@stdlib/array-base-linspace' );
var acovercos = require( '@stdlib/math-base-special-acovercos' );

var x = linspace( -2.0, 0.0, 100 );

var i;
for ( i = 0; i < x.length; i++ ) {
    console.log( acovercos( x[ i ] ) );
}

See Also

Notice

This package is part of 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, see the main project repository.

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License

See LICENSE.

Copyright

Copyright © 2016-2022. The Stdlib Authors.