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View Full Version : Equation for Inverse Cotangent


theboo10
Feb 27, 2009, 12:35 PM
How do you enter inverse cotangent (cot^-1) into an excel equation? I tried using ACOT but it did not work.

JBeaucaire
Feb 27, 2009, 05:54 PM
This function is not built in, probably because it can be easily figured with already existing function ATAN.

If the value you want the inverse cotangent is in cell A1, then the formula would be:

=ATAN(1/A1)