write this following matrix
조회 수: 1 (최근 30일)
이전 댓글 표시
How can I write the following matrix
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/291292/image.png)
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?
댓글 수: 6
Gokberk Yildirim
2020년 5월 16일
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)
채택된 답변
John D'Errico
2020년 5월 7일
편집: John D'Errico
2020년 5월 7일
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.
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Creating and Concatenating Matrices에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!