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I am reading an online article and what i understood from there is that linear convolution is aperiodic Is it right?

I have also attached snapshot and higlighted two instances

enter image description here

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What they call noncircular or aperiodic convolution is more commonly called linear convolution. Linear convolution describes the input-output relation of linear time-invariant (LTI) systems. Linear convolution can be computed via circular convolution if we use sufficient zero-padding. Circular convolution is important because it can be computed using fast algorithms (FFT).

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