Target Support Package - QMath Library

I am using qMath library (Target Support package TI) in present development. I want to use atan2 block but I am not being able to identify why there are two inputs to this block. Has anyone used this before and know how to use these two inputs.

Answer 1

[Richard Pfisterer]

The IQ math ATAN2 function is equivalent to the ATAN2 function in MATLAB. Read the help in MATLAB

>>doc atan2

In short, one needs to know the two values in order to compute which quadrant one is in. If you used X/Y there would be no way to determine the sign on X and Y which determines the quadrant one is in.