How to generate a normal matrix?

How to generate the following matrix in MATLAB? where α is real number, and n is odd number.

Answer 1

[KALYAN ACHARJYA]

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=...

[Omar B.]

Thank you.

Answer 2

[Bjorn Gustavsson]

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

[Omar B.]

I know how to generate tridiagonal matrix but with last column here it is confuesd me. Anyways, thank you.

[Bjorn Gustavsson]

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...

[Omar B.]

Thank you. I did it.