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Anyone have any issues with the answers they've gotten using the HP33S for division of two complex numbers?

I have two HP33S' and one of them (I will follow-up with serial numbers, maybe) might be giving me a wrong answer.

http://www.hp.com/calculators/docs/guides/33sComplex.pdf

Here's the learning module for complex numbers. Example 3 is a division. I have not heard of any complex number issues with the 33S.

Is there a particular division problem that seems to be giving trouble? If so, post it and let us all try it.

Gene