cscd

Compute the cosecant of a degree.

Installation

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

Usage

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

cscd( x )

Computes the cosecant of x (in degrees).

var v = cscd( 30 );
// returns ~2.0

v = cscd( 45 );
// returns ~1.41

v = cscd( 60 );
// returns ~1.15

v = cscd( 90 );
// returns 1.0

v = cscd( 0 );
// returns Infinity

v = cscd( NaN );
// returns NaN

Examples

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

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

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

C APIs

Usage

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

stdlib_base_cscd( x )

Computes the cosecant of x (in degrees).

double out = stdlib_base_cscd( 30.0 );
// returns ~2.0

out = stdlib_base_cscd( 45.0 );
// returns ~1.41

The function accepts the following arguments:

• x: [in] double input value.

double stdlib_base_cscd( const double x );

Examples

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

int main( void ) {
    const double x[] = { 30.0, 45.0, 60.0, 90.0 };

    double y;
    int i;
    for ( i = 0; i < 4; i++ ) {
        y = stdlib_base_cscd( x[ i ] );
        printf( "cscd(%lf) = %lf\n", x[ i ], y );
    }
}

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.