*To*: mathgroup@smc.vnet.net*Subject*: [mg11116] Vector Notations*From*: Lawrence Walker <lwalker701@earthlink.net>*Date*: Sun, 22 Feb 1998 14:55:40 -0500*Organization*: EarthLink Network, Inc.

The help screen for the package Utilities`Notation` Options for Notation, Symbolize and InfixNotation contains on three lines the following under the section for creating TraditionalForm notations for the vector calculus functions Div, Curl and the wrapper Vector: Notation[ \[Del].a_ \[DoubleLongLeftRightArrow] Div[a_] , WorkingForm \[Rule] TraditionalForm] Notation[ \[Del]\[Cross] a__ \[DoubleLongLeftRightArrow] Curl[a__] , WorkingForm \[Rule] TraditionalForm] \!\(\*FormBox[ RowBox[{"Notation", "[", " ", RowBox[{ RowBox[{ TagBox[\(a_\& \[RightVector] \), NotationBoxTag, Editable->True], " ", "\[DoubleLongLeftRightArrow]", " ", TagBox[\(Vector[a_]\), NotationBoxTag, Editable->True]}], " ", ",", \(WorkingForm\ \[Rule] \ TraditionalForm\)}], "]"}], TraditionalForm]\) When I tried to simply copy and paste and run the lines from the help screen into the notebook, I get a 'Notation::"badExternalNotationBoxes' error (the third line). How do I get the Notation to work as called out in the help screen? Lawrence