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Question: assume variables unique

Question:assume variables unique

brian bovril 889 Maple
optimization
September 21 2013
0

regarding optimization, we know about inputs like "assume=integer". I want to instruct Maple that the variables in my problem are required to be unique.

eg I have three variables a,b,c that could take values 1,3 or 4 (but not 1,1,2 or 2,3,3 ....etc).

With DirectSearch I could always add the constraint {a<>b, b<>c, a<>c}, but it gets complicated if you have more than 3 variables. Additionally Maples Optimization package does not allow strict logical operators like "not equal to".

any ideas experts?
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