acothf

Compute the inverse hyperbolic cotangent of a single-precision floating-point number.

Installation

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

Usage

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

acothf( x )

Computes the inverse hyperbolic cotangent of a single-precision floating-point number.

var v = acothf( 2.0 );
// returns ~0.5493

v = acothf( 1.0 );
// returns Infinity

The domain of the inverse hyperbolic cotangent is the union of the intervals (-inf,-1] and [1,inf). If provided a value on the open interval (-1,1), the function returns NaN.

var v = acothf( 0.0 );
// returns NaN

v = acothf( 0.5 );
// returns NaN

Examples

var uniform = require( '@stdlib/random-array-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var acothf = require( '@stdlib/math-base-special-acothf' );

var x = uniform( 100, 1.0, 5.0, {
    'dtype': 'float32'
});

logEachMap( 'acothf(%0.4f) = %0.4f', x, acothf );

C APIs

Usage

#include "stdlib/math/base/special/acothf.h"

stdlib_base_acothf( x )

Computes the inverse hyperbolic cotangent of a single-precision floating-point number.

float out = stdlib_base_acothf( 2.0f );
// returns ~0.5493f

The function accepts the following arguments:

• x: [in] float input value.

float stdlib_base_acothf( const float x );

Examples

#include "stdlib/math/base/special/acothf.h"
#include <stdio.h>

int main( void ) {
    const float x[] = { 1.0f, 1.44f, 1.89f, 2.33f, 2.78f, 3.22f, 3.67f, 4.11f, 4.56f, 5.0f };

    float v;
    int i;
    for ( i = 0; i < 10; i++ ) {
        v = stdlib_base_acothf( x[ i ] );
        printf( "acothf(%f) = %f\n", x[ i ], v );
    }
}

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.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2026. The Stdlib Authors.