write this following matrix
2 views (last 30 days)
Show older comments
Zeynep Toprak
on 7 May 2020
Commented: Gokberk Yildirim
on 16 May 2020
How can I write the following matrix
I define n=100
And I generate the following code
D= toeplitz ([0 1 zeros(1, n-2) -1]/ (2*h))
but I get wrong matrix. How can I correct it?
6 Comments
Gokberk Yildirim
on 16 May 2020
Actually, it can be done with this Zeynep.
c = [0 -1 zeros(1,n-3)];
r = [0 1 zeros(1,n-3)];
D = toeplitz(c,r) / (2*h)
Accepted Answer
John D'Errico
on 7 May 2020
Edited: John D'Errico
on 7 May 2020
Try this:
n = 100;
D = (diag(ones(n-1,1),1) - diag(ones(n-1,1),-1))/(2*h);
You can also use spdiags. or sparse, or many other tools. But diag as I did it above is about the simplest way.
More Answers (0)
See Also
Categories
Find more on Creating and Concatenating Matrices in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!