Isn’t the squaring actually multiplication by the complex conjugate when working in the complex plane? i.e., √((1 - 0 i) (1 + 0 i) + (0 - i) (0 + i)) = √(1 + - i²) = √(1 + 1) = √2. I could be totally off base here and could be confusing with something else…

I so badly want to be as smart and articulate as Feynman when ever I grow up.

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