Fastest & most effective way to create this matrix:

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Eitan
Eitan 2014-12-19
评论： Sean de Wolski 2014-12-19
Hey there, I have been searching for hours for a good solution & not found one yet. I need to create this matrix (6X6):
A = 0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 1 2 3
0 0 0 4 5 6
0 0 0 7 8 9
It must be in an effective & short way. Thank you if anyone can help with this one.

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采纳的回答

Andrei Bobrov
Andrei Bobrov 2014-12-19
one way
a =[1 2 3
4 5 6
7 8 9];
out = kron([0 0 ; 0 1],a);

更多回答（1 个）

Orion
Orion 2014-12-19
编辑：Orion 2014-12-19
clear A;
A(4:6,4:6) = reshape(1:9,3,3)'
  2 个评论
Eitan
Eitan 2014-12-19
Thank you! I actually used that code because it looks shorter. you guys are great!

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