@stdlib/math-base-special-asecd
v0.1.1
Published
Compute the arcsecant (in degrees) of a double-precision floating-point number.
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asecd
Compute the arcsecant (in degrees) of a double-precision floating-point number.
Installation
npm install @stdlib/math-base-special-asecd
Usage
var asecd = require( '@stdlib/math-base-special-asecd' );
asecd( x )
Computes the arcsecant (in degrees) of a double-precision floating-point number.
var sqrt = require( '@stdlib/math-base-special-sqrt' );
var v = asecd( 1 );
// returns 0.0
v = asecd( 2 * sqrt( 3 ) / 3 );
// returns ~30.0
v = asecd( sqrt( 2 ) );
// returns ~45.0
v = asecd( 2 );
// returns ~60.0
v = asecd( Infinity );
// returns 90.0
v = asecd( NaN );
// returns NaN
Examples
var linspace = require( '@stdlib/array-base-linspace' );
var asecd = require( '@stdlib/math-base-special-asecd' );
var x = linspace( -1.0, 1.0, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( asecd( x[ i ] ) );
}
C APIs
Usage
#include "stdlib/math/base/special/asecd.h"
stdlib_base_asecd( x )
Computes the arcsecant (in degrees) of a double-precision floating-point number.
double out = stdlib_base_asecd( 1.0 );
// returns 0.0
out = stdlib_base_asecd( 2.0 );
// returns ~60.0
The function accepts the following arguments:
- x:
[in] double
input value.
double stdlib_base_asecd( const double x );
Examples
#include "stdlib/math/base/special/asecd.h"
#include <stdio.h>
int main( void ) {
const double x[] = { 1.0, 1.45, 1.89, 2.33, 2.78, 3.22, 3.66, 4.11, 4.55, 5.0 };
double v;
int i;
for ( i = 0; i < 10; i++ ) {
v = stdlib_base_asecd( x[ i ] );
printf( "asecd(%lf) = %lf\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 © 2016-2024. The Stdlib Authors.