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Question: Anticommutative character of D with Physics package

Question:Anticommutative character of D with Physics package

John Fredsted 2243 Maple 17
May 20 2016
0

When the Physics package is loaded, Maple returns the following error in connection with the simple statement 2*D[1]:

Error, (in TypeTools/ac_var_local) unable to determine the anticommutative character of D[1]

Why that? Although to no avail, for D[1] there is no problem. Note that the above error results even without having set up any anticommutative prefixes or the likes in Physics Setup.

PS: I am using Maple 17.
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