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Question: Error, (in unassign/indexed) arguments of type `indexed' must refer to tables or arrays?

Question:Error, (in unassign/indexed) arguments of type `indexed' must refer to tables or arrays?

mehdibgh 240 Maple
array unassign
September 27 2018
0

Why I could not unaasign U_hat in my following program?


 

``

> 

restart
> 

II := 1:
> 

qq := 2:
> 

M := 2:
> 

seq(seq(seq(assign(U[i, j, m], h*`#mover(mi("U"),mo("&uminus0;"))`[i, j, m]), i = 0 .. qq), j = 0 .. qq), m = 1 .. 22)
> 

`#mover(mi("U"),mo("&uminus0;"))` := Array(0 .. II, 0 .. JJ, 1 .. M):
> 

Um[1, 1] := Matrix(2, 2, {(1, 1) = 1, (1, 2) = 2, (2, 1) = 3, (2, 2) = 4}); Um[1, 2] := Matrix(2, 2, {(1, 1) = 5, (1, 2) = 6, (2, 1) = 7, (2, 2) = 8})
> 

``
> 

for m to M do `#mover(mi("U"),mo("&uminus0;"))`[0 .. II, 0 .. JJ, m] := ArrayTools:-Alias(Um[1, m], [0 .. II, 0 .. JJ]) end do:
> 

``
> 

for i from 0 to qq do for j from 0 to qq do for m to 22 do `#mover(mi("U"),mo("&uminus0;"))`[i, j, m] := unassign('`#mover(mi("U"),mo("&uminus0;"))`[i, j, m]') end do end do end do

Error, (in unassign/indexed) arguments of type `indexed' must refer to tables or arrays

  

``


 

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