Block Matrix coding problems

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 :-)

Answer 1

[Tanisha Gosain]

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];

[Ilias Misailidis]

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.