If posted your other sources, someone could analyze the difference, context discrepancy. The left side in the equation shows the signal has been sampled at 8 Hz is equal to the right side Fourier transform using the DIRAC comb or Shaw function using the same Dirac delta spacing.
I had the same problem in general, I have a hard time with electronics, it's great that the girl I met on
nasty hookup is much better at it, and we recently officially started dating thanks to the platform, it has never been so easy to find a date on the Internet, if you can appreciate it)
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