Can anyone explain how I can create a plot of the summation of two or more bode plots. I have created 3 bode plots named G1, G2, and G3. I would like to create a bode plot called G4 which is the Magnitude of the previous 3 summed, and the Phase of the previous 3 summed. Each Bode plot was created using the following notation: G1 = TransferFunctionModel[{"my function"},s]; G2 = ... G3 = ... Somehow I would like G4 to be the bode plot of G1+G2+G3.... but this notation is clearly incorrect. Then I did BodePlot[{G1,G2,G3,G4},{10,10^(10)}] Can someone please advise!!! Thank you!!

missed the "s" sorry.

I have mathematica 8 and it doesn't seem to recognize the SystemModelSeriesConnect function. Am I missing something obvious?

That sounds right to me. I just did not know the syntax for doing what I wanted to do. Appreciate the help!!!!

Summation of Bode Plots