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Question: Warning "Error empty number".

Question:Warning "Error empty number".

petit loup 40 Maple 18
October 02 2016
1

 
Good morning,
I use Maple 18. Since two days, I get the warning "Error, empty number" when I write:
time();      OR
with(Groebner):sol:=Basis(F,lexdeg(K,[]),method=direct):    OR
roll:=rand(0..10):roll();
 
Do you know the reason for the blocking ?
Thanks in advance.
 
 

 
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