What do people mean when they say that the "Fundamental Theorem of Engineering" is $\pi=3=e$? [closed]
I've seen this kind of thing on many sites, that the "Fundamental Theorem of Engineering" is
$$\pi=3=e$$
Some of them said this is just a joke.
Well, I know $\pi=3,1415926\ldots$ and $e=2,7128128459045\ldots$
Then, what is the idea behind what did they thinking about?
Is this about "Rounding Numbers"?
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