|what the ????|
I'm a new Mathematica user. I'm trying to use the function PlotVectorField. I know I have to load the Graphics`PlotField` package, which I've done. But when I try to run the function, the output just spits back my input line at me. No graph is produced.
I had this working fine last night, and I'm not doing anything different now. This has got to be some common bonehead beginner problem, but I'm starting to get the impression that this package could be a LOT more user-friendly.