After fixing the problem outlined in a previous post, I seem to get another error that I can't explain.
"Error, (in int) wrong number (or type) of arguments" is the product of defining a function 'u(r,theta,t)' and then defining each of its components.
I've attached the file here as well. Could someone help with troubleshooting? MapleMem5.mw
Also, I'm having trouble with the following concept. If I have this function 'u' and one of its components is, say, 'A', should I define 'A' as a function or a constant? 'A' does have variables like 'r','theta', and 't' and it also has the integers 'k' and 'm' (for the infinite series later on).
Thank you.
