There are two ways!
b) The second method is Novel Way method. People like Nikolai Tesla, or someone else like him in electronics invent/create them rather than getting from the books. Books get published later.
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Comment:
It's Nikola Tesla (1856-1943) and not Nikolai. He was great Serbian scientist (not Russian or Croat, etc.) who worked in USA.
I have similar problem with analog design. No one wants to teach you how to do such a things or to show you some algoritms/knacks.
Only way is to manage it yourself and it is long and hard job. At school I studied everything but theoretically
.
Regards.