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Question: Unassigning certain user variables

Question:Unassigning certain user variables

Schivnorr 531 Maple
assign
November 16 2005
0
We have an automated grading system and sometimes students assign values to variables that are useful in grading their assignments. In order to get around this I've been tinkering with the anames() command (specifically, anames(user)), but I cannot seem to get a usable list of "in use" variable names: Every time I try to get Maple to use the list that anames(user) returns, I get the evaluated variable and not the variable name. Example: >a:=4; >anames(user)[1]; 4 Does anyone know how I can get a usable list of variable names that have been assigned values?
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