❮ Math Methods
Example
System.out.println(Math.acos(0.64));
System.out.println(Math.acos(-0.4));
System.out.println(Math.acos(0));
System.out.println(Math.acos(1));
System.out.println(Math.acos(-1));
System.out.println(Math.acos(2));Definition and Usage
The acos() method returns the arc cosine value of a number.
Tip
acos(-1) returns the value of PI.
Syntax
public static double abs(double
number )Parameter Values
| Parameter | Description |
|---|---|
| number | Required. A number to find the arc cosine of, in the range -1 to 1. If the value is outside -1 to 1, it returns NaN (Not a Number). |
Technical Details
| Returns: | A double value, representing the arc cosine of a number |
|---|