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Question: minus~ doesn't seem to act as an element-wise operator

Question:minus~ doesn't seem to act as an element-wise operator

mmcdara 6149 Maple 2015
minus
July 28 2018
2

Help page says "minus~" is an element-wise operators in Maple
Why this command doesn't return [{1}, {3}] but generates an error ?
[{1, 2}, {2, 3}] minus~ {2};
Error, dimension bounds must be the same for all container objects in an elementwise operation

OK, you can answer I could use  map(u -> u minus {2}, [{1, 2}, {2, 3}]), but it wouldn't explain the reason of the (my?) error.

Thanks in advance

 

 

 
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