Returns the angle whose cosine is the specified number.

Syntax

Atan(number, [toRadians])

The ATAN function syntax has the following arguments:

  • number Required. The tangent of the angle you want.
  • isRadians Optional. Will convert it to Radians.

Examples

Formula

Result

=Atan(1)

45

=Atan(1, "true") * (180 / 3.141592653589793)

45