Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind Java Math atan() Method?
Lesson checks
Practice each idea before moving on
Short Mimo-style checks built from this lesson's code, terms, and sequence.
1Quick choice
Which statement best captures the main point of this lesson?
2Fill blank
Complete the missing token from the example code.
___.out.println(Math.atan(0.5));3Order
Put the learning moves in the order that makes the concept easiest to apply.
The atan() method returns the arc tangent of a number in radians.
Definition and Usage
Java Math atan() Method
❮ Math Methods
Example
System.out.println(Math.atan(0.5));
System.out.println(Math.atan(-0.5));
System.out.println(Math.atan(5));
System.out.println(Math.atan(-5));
System.out.println(Math.atan(100));
System.out.println(Math.atan(-100));Definition and Usage
The atan() method returns the arc tangent of a number in radians.
Tip
The atan() method only returns angles between -PI/2 and PI/2. The atan2() method can return any angle.
Syntax
public static double atan(double
number )Parameter Values
| Parameter | Description |
|---|---|
| number | Required. A number to find the arc tangent of. |
Technical Details
| Returns: | A double value representing the arc tangent of a number in radians. |
|---|---|
| Java version: | Any |