ATAN function

Category: Math and trigonometry
Introduced: Excel 2003

Summary

Returns the arctangent of a number

Syntax

ATAN(number) The ATAN function syntax has the following arguments:
• Number Required. The tangent of the angle you want.

Example

=ATAN(1)
=ATAN(1)*180/PI()
=DEGREES(ATAN(1))

Microsoft Support Page

https://support.microsoft.com/en-us/office/atan-function-50746fa8-630a-406b-81d0-4a2aed395543

Back to Functions