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@stdlib/math-base-special-acos
Advanced tools
Compute the arccosine of a double-precision floating-point number.
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Compute the arccosine of a double-precision floating-point number.
npm install @stdlib/math-base-special-acos
var acos = require( '@stdlib/math-base-special-acos' );
Computes the arccosine of a double-precision floating-point number (in radians).
var v = acos( 1.0 );
// returns 0.0
v = acos( 0.707 ); // ~pi/4
// returns ~0.7855
v = acos( 0.866 ); // ~pi/6
// returns ~0.5236
v = acos( NaN );
// returns NaN
The domain of x
is restricted to [-1,1]
. If |x| > 1
, the function returns NaN
.
var v = acos( -3.14 );
// returns NaN
var linspace = require( '@stdlib/array-base-linspace' );
var acos = require( '@stdlib/math-base-special-acos' );
var x = linspace( -1.0, 1.0, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( acos( x[ i ] ) );
}
#include "stdlib/math/base/special/acos.h"
Computes the arccosine of a double-precision floating-point number (in radians).
double out = stdlib_base_acos( 1.0 );
// returns 0.0
out = stdlib_base_acos( 0.707 ); // ~pi/4
// returns ~0.7855
The function accepts the following arguments:
[in] double
input value (in radians).double stdlib_base_acos( const double x );
#include "stdlib/math/base/special/acos.h"
#include <stdio.h>
int main( void ) {
const double x[] = { -1.0, -0.78, -0.56, -0.33, -0.11, 0.11, 0.33, 0.56, 0.78, 1.0 };
double v;
int i;
for ( i = 0; i < 10; i++ ) {
v = stdlib_base_acos( x[ i ] );
printf( "acos(%lf) = %lf\n", x[ i ], v );
}
}
@stdlib/math-base/special/acosh
: compute the hyperbolic arccosine of a double-precision floating-point number.@stdlib/math-base/special/asin
: compute the arcsine of a double-precision floating-point number.@stdlib/math-base/special/atan
: compute the arctangent of a double-precision floating-point number.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.
Copyright © 2016-2024. The Stdlib Authors.
0.2.3 (2024-07-28)
<section class="commits">41d41e9
- test: include trailing newlines in Julia-generated JSON fixtures (by Philipp Burckhardt)9ed7d0e
- chore: add missing trailing newlines (by Philipp Burckhardt)A total of 1 person contributed to this release. Thank you to this contributor:
FAQs
Compute the arccosine of a double-precision floating-point number.
We found that @stdlib/math-base-special-acos demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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