I'm used to seeing a function like:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\textbf{f}=x+iy \text [/tex]

where

[tex]i = \sqrt{-1}[/tex]

and understanding the the real part is:

[tex]\text{Re[f]} = x = Acos\theta[/tex]

What, though, is the real part of a function like, for example,

[tex]\textbf{f}=\sqrt{x+iy}[/tex]

??

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# Real Part of a Function

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