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Compute the half-value coversed cosine.
The half-value coversed cosine is defined as
npm install @stdlib/math-base-special-hacovercosAlternatively,
- To load the package in a website via a
scripttag without installation and bundlers, use the ES Module available on theesmbranch (see README). - If you are using Deno, visit the
denobranch (see README for usage intructions). - For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the
umdbranch (see README).
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To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.
var hacovercos = require( '@stdlib/math-base-special-hacovercos' );Computes the half-value coversed cosine (in radians).
var v = hacovercos( 0.0 );
// returns 0.5
v = hacovercos( 3.141592653589793/2.0 );
// returns 1.0
v = hacovercos( -3.141592653589793/6.0 );
// returns 0.25var linspace = require( '@stdlib/array-base-linspace' );
var TWO_PI = require( '@stdlib/constants-float64-two-pi' );
var hacovercos = require( '@stdlib/math-base-special-hacovercos' );
var x = linspace( 0.0, TWO_PI, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( hacovercos( x[ i ] ) );
}#include "stdlib/math/base/special/hacovercos.h"Computes the half-value coversed cosine (in radians).
double out = stdlib_base_hacovercos( 0.0 );
// returns 0.5
out = stdlib_base_hacovercos( 3.141592653589793 / 2.0 );
// returns 1.0The function accepts the following arguments:
- x:
[in] doubleinput value.
double stdlib_base_hacovercos( const double x );#include "stdlib/math/base/special/hacovercos.h"
#include <stdio.h>
int main( void ) {
const double x[] = { 0.0, 0.523, 0.785, 1.047, 3.14 };
double y;
int i;
for ( i = 0; i < 5; i++ ) {
y = stdlib_base_hacovercos( x[ i ] );
printf( "hacovercos(%lf) = %lf\n", x[ i ], y );
}
}@stdlib/math-base/special/hacoversin: compute the half-value coversed sine.@stdlib/math-base/special/havercos: compute the half-value versed cosine.
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.
See LICENSE.
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