@stdlib/math-base-special-acoth
v0.2.3
Published
Compute the inverse hyperbolic cotangent.
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acoth
Compute the inverse hyperbolic cotangent of a double-precision floating-point number.
Installation
npm install @stdlib/math-base-special-acoth
Usage
var acoth = require( '@stdlib/math-base-special-acoth' );
acoth( x )
Computes the inverse hyperbolic cotangent of a double-precision floating-point number.
var v = acoth( 2.0 );
// returns ~0.5493
v = acoth( 1.0 );
// returns Infinity
The domain of the inverse hyperbolic cotangent is the union of the intervals (-inf,-1]
and [1,inf)
. If provided a value on the open interval (-1,1)
, the function returns NaN
.
var v = acoth( 0.0 );
// returns NaN
v = acoth( 0.5 );
// returns NaN
Examples
var linspace = require( '@stdlib/array-base-linspace' );
var acoth = require( '@stdlib/math-base-special-acoth' );
var x = linspace( 1.0, 5.0, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( acoth( x[ i ] ) );
}
C APIs
Usage
#include "stdlib/math/base/special/acoth.h"
stdlib_base_acoth( x )
Computes the inverse hyperbolic cotangent of a double-precision floating-point number.
double out = stdlib_base_acoth( 2.0 );
// returns ~0.5493
The function accepts the following arguments:
- x:
[in] double
input value.
double stdlib_base_acoth( const double x );
Examples
#include "stdlib/math/base/special/acoth.h"
#include <stdio.h>
int main( void ) {
const double x[] = { 1.0, 1.44, 1.89, 2.33, 2.78, 3.22, 3.67, 4.11, 4.56, 5.0 };
double v;
int i;
for ( i = 0; i < 10; i++ ) {
v = stdlib_base_acoth( x[ i ] );
printf( "acoth(%lf) = %lf\n", x[ i ], v );
}
}
See Also
@stdlib/math-base/special/acosh
: compute the hyperbolic arccosine of a double-precision floating-point number.@stdlib/math-base/special/acot
: compute the inverse cotangent.@stdlib/math-base/special/asinh
: compute the hyperbolic arcsine of a double-precision floating-point number.@stdlib/math-base/special/atanh
: compute the hyperbolic arctangent 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.