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Question: Iterator[CartesianProduct], option rank

Question:Iterator[CartesianProduct], option rank

vv 12915 Maple 2016
iterator cartesianproduct
September 28 2016
2

It seems to be a bug here:

restart;
with(Iterator):
M := CartesianProduct([1,2],[a,b],[c,d,e], rank=3):
n:=0:  for v in M do n:=n+1: print(n,v); end do:

              1, [2   b   c]
              2, [2   b   d]
Error, (in unknown) improper op or subscript selector

# for rank=9  ==>  [list, b, e]     ??
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