acotdf

Compute the arccotangent in degrees of a single-precision floating-point number.

Installation

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

Usage

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

acotdf( x )

Computes the arccotangent (in degrees) of a single-precision floating-point number.

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

var v = acotdf( 0.0 );
// returns 90.0

v = acotdf( sqrtf( 3.0 ) );
// returns ~30.0

v = acotdf( 1.0 );
// returns 45.0

v = acotdf( sqrtf( 3.0 ) / 3.0 );
// returns ~60.0

v = acotdf( NaN );
// returns NaN

Examples

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

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

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

Usage

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

stdlib_base_acotdf( x )

Computes the arccotangent (in degrees) of a single-precision floating-point number.

float out = stdlib_base_acotdf( 0.0f );
// returns 90.0f

out = stdlib_base_acotdf( 3.0f );
// returns ~30.0f

The function accepts the following arguments:

• x: [in] float input value.

float stdlib_base_acotdf( const float x );

Examples

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

int main( void ) {
    const float x[] = { 1.0f, 1.45f, 1.89f, 2.33f, 2.78f, 3.22f, 3.66f, 4.11f, 4.55f, 5.0f };

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

See Also

• @stdlib/math-base/special/acotd: compute the arccotangent (in degrees) of a double-precision floating-point number.
• @stdlib/math-base/special/acotf: compute the inverse cotangent of a single-precision floating-point number.

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.