What is the documentation for the inputs of the ATAN2 function in the Trigonometric Function block in Simulink?

I am using the ATAN2 function in the Trigonometric Function block under the Math Operations library. However, I am not sure what the inputs are for. The only documentation I found about this block is in the following location:

https://www.mathworks.com/help/simulink/slref/trigonometricfunction.html

Answer 1

[MathWorks Support Team]

This bug has been fixed for Release 14 SP1 (R14SP1). For previous releases, please read below for any possible workarounds:

Documentation on the ATAN2 function in the Trigonometric Function block is missing from Simulink.

The first input of the ATAN2 function in the Trigonometric Function block is for the y-axis or the imaginary part, while the second input is for the x-axis or the real part.