What am I doing wrong? I wanted to convert a complex number to its polar form (a+bi=x(Cos[y]+i Sin[y]), but when I tried to type AbsArg in Mathematica 9 it doesn't recognize!! For example, AbsArg[1+i].
Do I need to install a package or something, does this function AbsArg really exist in version 9?
This is absolutely nuts and super annoying how the function is on their site, but isn't recognized for me. Please help.