acot

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

Usage

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

acot( x )

Computes the inverse cotangent of a double-precision floating-point number (in radians).

var v = acot( 2.0 );
// returns ~0.4636

v = acot( Infinity );
// returns 0.0

Examples

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

var x = uniform( 100, -5.0, 5.0, {
    'dtype': 'float64'
});

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

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C APIs

Usage

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

stdlib_base_acot( x )

Computes the inverse cotangent of a double-precision floating-point number (in radians).

double out = stdlib_base_acot( 2.0 );
// returns ~0.4636

The function accepts the following arguments:

• x: [in] double input value.

double stdlib_base_acot( const double x );

Examples

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

int main( void ) {
    const double x[] = { -5.0, -3.89, -2.78, -1.67, -0.56, 0.56, 1.67, 2.78, 3.89, 5.0 };

    double v;
    int i;
    for ( i = 0; i < 10; i++ ) {
        v = stdlib_base_acot( x[ i ] );
        printf( "acot(%lf) = %lf\n", x[ i ], v );
    }
}

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See Also

• @stdlib/math/base/special/acoth: compute the inverse hyperbolic cotangent.
• @stdlib/math/base/special/atan: compute the arctangent of a double-precision floating-point number.
• @stdlib/math/base/special/cot: evaluate the cotangent of a number.