Curl and Div problems

*To*: mathgroup at smc.vnet.net*Subject*: [mg115484] Curl and Div problems*From*: sean k <seaninsocal at gmail.com>*Date*: Wed, 12 Jan 2011 04:07:36 -0500 (EST)

I'm having problems with VectorAnalysis package. Within the documentation center, the package loads and works fine. But in a notebook, it seems to highlight Curl in red and neither Div or Curl works properly. Needs["VectorAnalysis`"] {D[x^2 y, x] + D[ x z, y] + D[ x^2 y^3, z]} Div[{x^2 y, x z, x^2 y^3}] gives different answers. {2 x y} 0 Curl[{x^2 y, x z, x^2 y^3}] gives {0,0,0} I'm on windows vista home edition, 64 bit, Mathematica 8.0. Does anyone else have this problem?