Conformal mapping: Identify 2 interesting points for f(z) = z + 1/z

escobarro

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Mar 2, 2016
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Hey
We were told to use the tool on http://rotormind.com/projects/codework/conformal/ to:
"identifythe two interesting points in the picture for the function f(z) = z + 1/z. Explain your answer.(Hint: you may find the quadratic formula useful here.)"
attachment.php

We were told to use those two points and that with high school mathematics (without knowing what conformal mapping is), we could find them & prove that they are the points
I really have no idea what the picture shows and how to find the points

Thanks!
 

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