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Block Matrix coding problems

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Ilias Misailidis
Ilias Misailidis 2020-6-11
评论： Ilias Misailidis 2020-6-21
Hi my name is Ilias and i am new entry to Matlab. I am trying to make a block matrix 9x9 like foto for my homework to university and nothing happened with code.
Someone to help me with code pls :-)

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Tanisha Gosain
Tanisha Gosain 2020-6-18
The photo you have attached will make a 4x4 matrix and not a 9x9 matrix.
You can make a 4x4 matrix (assuming arguments to trigonometric functions are in degrees) by:
Asub = [sind(90) cosd(60); cosd(40) cosd(30)];
A = [Asub Asub; Asub Asub];
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Ilias Misailidis
Ilias Misailidis 2020-6-21
Hi
Really thanks you for your response. I attached only 4x4 because if I understand how it works, I will make it for 9x9. The block you have written I understand it. If I had the same number for the other 3 blocks. How I should have written it?
Really thanks again.

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