Math classes to become good at complex analysis?

[MathWarrior]

What undergraduate math classes would you want to take if you wanted to be exposed to the stuff used in complex analysis? (Besides complex analysis)

 

[Newtime]

Are you asking what the pre-req's are? Or are you asking how to learn some fundamental techniques from complex analysis without taking complex analysis?

 

[mathwonk]

the basic ideas in complex analysis are path integration, infinite series (including negative powers), plane topology, and explicit angle preserving ("conformal") transformations defined by linear fractional transformations of form (az+b)/cz+d) which take lines and circles into lines and/or circles. you could study any of these.