Recent content by Jonnnnn

Thank you very much RUber! That's exactly what I'm dealing with.

Actually, the singularity here is an essential singularity, which is not removable I think.

Homework Statement the Laurent expansion of f(z)=e1/sin(z) at the isolated singularity z=π Homework EquationsThe Attempt at a Solution I tried rewriting 1/sin(z) into exponential form, but it seems have no help for the expansion. Would someone give me some inspirations?

Ha! Nice to meet you here Jon~!

My name's Jon. study physics in Chicago. I used to be a electro-engineering student. hope I could learn more on physics forums!