on what structures is possible to iterate?

matrices

asked 2016-12-24 15:48:09 +0100

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I need to do a for loop on MatrixSpace(MatrixSpace(GF(2), 2), 1, 2) but it turns out to be impossible. Is there anyway to get around it?

Also, as the title says, on what structures is possible to iterate? I would imagine in structures with a natural order, but I am not sure about it.

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answered 2016-12-25 16:16:27 +0100

ndomes

2429 ●1 ●22 ●55

I think you need a nested for loop. For example:

N = MatrixSpace(GF(2), 2)([0,1,1,0])
M = MatrixSpace(MatrixSpace(GF(2), 2), 1, 2)
M1 = M((N,N))
show(M1)
for m in M1.list():
    for k in m.list():
        print k

You can iterate over any sequence. If your respective object isn't a sequence, look if it has a list method.

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@ndomes Thanks for your answer. But is it possible to iterate on the entire space M? It does not have a list method.

xhimi ( 2016-12-29 18:27:52 +0100 )edit

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Asked: 2016-12-24 15:48:09 +0100

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Last updated: Dec 25 '16

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