Re: Curl and Div problems

*To*: mathgroup at smc.vnet.net*Subject*: [mg115558] Re: Curl and Div problems*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Fri, 14 Jan 2011 06:20:18 -0500 (EST)

Indeed, when I reported this business about the syntax coloring of Curl to Wolfram tech support, they responded quickly to point out it indicates shadowing (hence -- they did not explicitly say this -- it's not a bug). The trouble is, before you load the VectorAnalysis package, Curl seems to have no meaning other than as a symbol: ?Curl System`Curl And if you search for Curl in the Documentation Center, you seem to get no item related to that name in the System context. This is an annoyance, yet I don't see a wholly satisfactory resolution to it. Having Curl available in the System context means you can define your own definition for it. On 1/13/2011 3:24 AM, Kevin J. McCann wrote: > I also noticed this. It seems that Curl is defined in the basic > Mathematica commands; hence, the red indicates that you have defined the > function twice.... -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305