Functions
ATAN
Arctangent in radians
Try it
When to use it
When should I use ATAN instead of ATAN2?
Use ATAN when you have a single ratio value; use ATAN2 when you have separate x and y coordinates and need the correct quadrant.
Used in
Syntax
ATAN(number)Examples
=ATAN(0) // => 0
=ATAN(1) // => 0.7853981633974483
=ATAN(-1) // => -0.7853981633974483