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Swapping the Order of Two Systems

Under what condition can we swap the order?

Submitted by: Rick Lyons
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Bandpass Filter Delay

What will be the time delay between the filter's input and output?

Submitted by: Rick Lyons
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Trapezoidal Rule

Estimate the discrete definite integral.

Submitted by: Rick Lyons
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Trigonometry is Fun!

Can you guess the correct area?

Submitted by: MaxMaxfield
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Guess the LTI Frequency Response

A sequence x(n) is parallelized with a delay line...

Submitted by: apolin
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Periodic or not?

This Quiz Question is related to the notion of periodicity.

Submitted by: Rick Lyons
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Guess the Output Sequence

Let's say a DSP practitioner performs a forward discrete Fourier transform (DFT), zero padding, and inverse DFT processing shown in the following figure.

Submitted by: Rick Lyons
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