No, @robertbristow-johnson I be glad to spend some time answering it if it's edited

Legitimate closing!!

Please, do not sent me an " Electrical Engineering" t-shirt. I would not be able to wear it in public:)

@Gilles Same for me. I should tell my former EE teachers. They'll have a seizure...

@JasonR Let me acknowledge your authoritative comment by validating this answer.

More work possibly, depending on external ressources, but a quite interesting option

I suspect this is not only about "things as they are". At the present time, DSP Meta does not allow MathJax. So to formulate a question, I may alter my expression, or formulate it in a less precise or generic way. Should one encourage OP to post "as if" they were talking to latex literates?

No, I cannot think to that level