Substracting two oscillating signals with different amplitudes in Simulink

Hi

I have two signals that change with respect to time. You can say that one has a maximum amplitude of 1.37 and other one has a maximum amplitude of 0.93 at t=5. I tried using both; a function block and a subtraction block to subtract these two signals. But instead of getting the result that I expect which should be (1.37-0.93) at that maximum point, I am getting 1.73. I have no idea what is going on. I am so confused.

Please help.

Answer 1

[Mischa Kim]

James, check out the attached model. It does what you want to do with a subtraction block and should help get you started.