acsc

Compute the arccosecant of a number.

Installation

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

Usage

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

acsc( x )

Computes the arccosecant of x.

var v = acsc( 1.0 );
// returns ~1.57

v = acsc( -3.141592653589793 );
// returns ~-0.32

If |x| < 1, the function returns NaN.

var v = acsc( 0.5 );
// returns NaN

Examples

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

var x = linspace( 1.1, 5.1, 100 );

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

C APIs

Usage

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

stdlib_base_acsc( x )

Computes the arccosecant of a double-precision floating-point number.

double out = stdlib_base_acsc( 1.0 );
// returns ~1.57

The function accepts the following arguments:

• x: [in] double input value.

double stdlib_base_acsc( const double x );

Examples

#include "stdlib/math/base/special/acsc.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_acsc( x[ i ] );
        printf( "acsc(%lf) = %lf\n", x[ i ], v );
    }
}

See Also

• @stdlib/math-base/special/acot: compute the inverse cotangent.
• @stdlib/math-base/special/acsch: compute the hyperbolic arccosecant of a number.
• @stdlib/math-base/special/asec: compute the inverse (arc) secant of a number.
• @stdlib/math-base/special/asin: compute the arcsine of a double-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 © 2016-2024. The Stdlib Authors.