Java Math acos() Method
Example
Return the arc cosine of different numbers:
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 |
---|
❮ Math Methods