The Fourier Transform is complex in the mathematical sense, which means that each coefficient is represented by complex number.
Every TV viewer compares live content with what they regularly see on TV, with multimillion-dollar talent with more multimillions in technical equipment and support.
We are not done with statistics yet. In a sense we will never be done with it and it is better to know how to deal with it than to ignore it. It is better still to know how others commonly fail to deal with it and reach conclusions that cannot be justified. It is typically very hard to explain to people who do not understand.
Here we look at alternating current (AC) systems and how generating AC often requires an intermediate step of converting to DC to improve the efficiencies of AC generators.
Information can never be separated from its nemesis, which is uncertainty. The former is only possible by limiting the latter.
Electrical safety is extremely important, and a combination of technology and procedures helps achieve adequate protection.
As we saw earlier when discussing transform duality, when something happens on one side of a transform, we can predict through duality what to expect on the other side.