How to generate a normal matrix?

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Omar B.
Omar B. 2021-3-4
评论： Omar B. 2021-3-5
How to generate the following matrix in MATLAB? where α is real number, and n is odd number.

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KALYAN ACHARJYA
KALYAN ACHARJYA 2021-3-4
编辑：KALYAN ACHARJYA 2021-3-4
You can do this in many ways, one way is as follows
Hope, for the last corner mat(1,:)= ....element, you can manipulate:
Sufficient Hints:
alpha=.....;
n=....; % Square Matrix
diag_mat=diag(alpha*ones(1,n));
pattern_data=triu(ones(n),-1).*tril(ones(n),-1);
Add those two matrices
result=...

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Bjorn Gustavsson
Bjorn Gustavsson 2021-3-4
Have a look at the help and documentation of the diag-function. This question indicates that you're very new to matlab, so you might get up to speed faster if you look through the matlab-onramp material. One of the main skills to learn is to browse efficiently through the help. You should also be able to use the lookfor function to find starting-points for your help-search.
HTH
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Bjorn Gustavsson
Bjorn Gustavsson 2021-3-4
Well this is just "2/3rds" of a tri-diagonal matrix, so then you should be set?
A = diag(alpha*ones(n,1),0) + diag(ones(n-1,1),-1);
I typically forgets if I need +1 or -1 for the sub/sup-diagonals and have to check - but checking is a good fraction of good programming practice...

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