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Apr 11, 2023 at 12:10 comment added Dan Boschen Ah I got it, given you used a slow sinusoid to model the decay. (I like the thought --- if it was $9e^{-2\pi ft + j\pi/4}$ it would be 9V at 45 degrees starting at t=0 and decaying with a real frequency (exponential decay) :)
Apr 11, 2023 at 12:00 comment added jpa @DanBoschen I'm interpreting 45° as phase lag, while 0° would be maximum at t=0. But I agree that 45° phase lead would make sense, which would just be a bit empty to start with.
Apr 11, 2023 at 10:25 comment added Dan Boschen Nice! I’m thinking $9e^{-2\pi f t}$ for your zero degree case. To follow your train of thought, what made your complex case go up before down?
Apr 11, 2023 at 9:25 history answered jpa CC BY-SA 4.0