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
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