Does $f(x+yi):= \frac{xy}{x^2+y^2}$ have a continuous function in 0 ?
I would start by changing it to $f(z) = \frac{xy}{|z|^2}$ but i cant find anything for xy
2026-05-16 17:07:06.1778951226
Does $f(x+yi):= \frac{xy}{x^2+y^2}$ have a continuous function in 0?
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