[in] Value whose arccosine is to be calculated, where -1 <= cosine <= 1.
Description:
Returns the arccosine of cosine in the range 0 to M_PI/2 radians.
If cosine is less than -1 or greater than 1, acos returns an indefinite by default.
Return value:
Returns the arccosine of cosine in the range 0 to M_PI/2 radians.
Example
import standard.C.math
class Main {
function Main() {
var x = 0;
echo "Arcsine of " + x + " is " + asin(x) + "\n";
echo "Arccosine of " + x + " is " + acos(x);
}
}
Results
Arcsine of 0 is 0
Arccosine of 0 is 1.5707963267948966