Today I am tackling a very difficult subject which is widely misunderstood, the correct treatment of digital data.
Lets go back to childhood. Scribbling lines with a pencil on paper. Today as grown up we represent the squiggle by a series of X and Y numbers in a computer. There is no other way to do a digital representation of a continuous or analogue line. Confusingly in English, one is the analogue of the other.
Even here I am not being strictly correct, omitting the reconstruction filter.
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