Cartesian[(x, y, z)] is not a valid coordinate system specification
- To: mathgroup at smc.vnet.net
 - Subject: [mg44505] Cartesian[(x, y, z)] is not a valid coordinate system specification
 - From: Karsten Rothemund <karo at etechnik.uni-rostock.de>
 - Date: Thu, 13 Nov 2003 02:26:56 -0500 (EST)
 - Reply-to: karsten.rothemund at etechnik.uni-rostock.de
 - Sender: owner-wri-mathgroup at wolfram.com
 
Hello all out there
I use Mathematica 4.2 under FreeBSD (Linux API) and 4.1 (Linux).
I want to demonstrate my students something about grad, div and curl.
So I prepared a notebook on the FreeBSD-machine (Mathematica 4.2),
which worked there OK. Now I want to re-evaluate the notebook at the
university (Mathematica 4.1 on Linux) and I get the following:
-----8<----------8<----------8<----------8<----------8<----------8<-----
In[1]:= << CalculusVectorAnalysis
  Cartesian::"shdw": Symbol "Cartesian" appears in multiple contexts \
    CalculusVectorAnalysis, Global definitions in context \
    CalculusVectorAnalysis may shadow or be shadowed by other \
    definitions.
In[2]:= <<GraphicsPlotField3D
        <<GraphicsPlotField
        <<GraphicsContourPlot3D
        <<GraphicsLegend
In[3]:= SetCoordinates[Cartesian[x, y, z]]
  Coordinates::"invalid": Cartesian[x, y, z] is not a valid \
    coordinate system specification.
Out[3]:= SetCoordinates[Cartesian[x, y, z]]
-----8<----------8<----------8<----------8<----------8<----------8<-----
At this point I can stop evaluating the notebook. :-(
But what is the problem here? Is there a significant difference
between 4.1 and 4.2? A Bug? 
Does a workaround exist? (I don't want to update/downgrade to have
both machines at a consistent level)
I couldn't find anything with google (but maybe I didn't look at the
right places -> pointer to them might be enough).
Thanx for any help,