Archavercosine
Compute the inverse half-value versed cosine.
The inverse half-value versed cosine is defined as
Usage
var ahavercos = require( '@stdlib/math/base/special/ahavercos' );
ahavercos( x )
Computes the inverse half-value versed cosine.
var v = ahavercos( 0.0 );
// returns ~3.1416
v = ahavercos( 1.0 );
// returns 0.0
v = ahavercos( 0.5 );
// returns ~1.5708
If x < 0
, x > 1
, or x
is NaN
, the function returns NaN
.
var v = ahavercos( 1.5 );
// returns NaN
v = ahavercos( -3.14 );
// returns NaN
v = ahavercos( NaN );
// returns NaN
Examples
var linspace = require( '@stdlib/array/base/linspace' );
var ahavercos = require( '@stdlib/math/base/special/ahavercos' );
var x = linspace( 0.0, 1.0, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( ahavercos( x[ i ] ) );
}