photo

Ziwen Gu


Last seen: 9ヶ月 前 |  2023 年からアクティブ

Followers: 0   Following: 0

統計

  • Thankful Level 2

バッジを表示

Feeds

表示方法

質問


Solving the arising equation with preconditioned iteration method.
I want to use preconditioned iteration method, like pcg or gmres, to solve . In each iteration, it has to solve some additional...

約1年 前 | 1 件の回答 | 0

1

回答

質問


Complexity order of fft in matlab
Hello everyone, I want to check the complecity order of fft is O(N*log(N) in matlab, so I ran the code below: The expected ra...

1年以上 前 | 0 件の回答 | 0

0

回答

質問


Quick method in solving symmetric linear equation
In simulation of PDE, I have to solve a linear equation: Ax = b for many times( with different b, iteratively ) . The matrix A ...

1年以上 前 | 2 件の回答 | 0

2

回答

質問


Use sky colormap in old Matlab version
Hello everyone, I want to use colormap "sky" released in Matlab , but my Matlab is an older version. Can someone help give me t...

1年以上 前 | 2 件の回答 | 0

2

回答

質問


A unknown bug on matrix
Follow the fig, R and S are matrix of size(4225*4225), delta, sigma,delta_gamma are scale parameter. When they minus, the siz...

1年以上 前 | 3 件の回答 | 0

3

回答