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Question
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...
ongeveer een jaar ago | 1 answer | 0
1
answerQuestion
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...
meer dan een jaar ago | 0 answers | 0
0
answersQuestion
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 ...
meer dan een jaar ago | 2 answers | 0
2
answersQuestion
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...
meer dan een jaar ago | 2 answers | 0
2
answersQuestion
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...
bijna 2 jaar ago | 3 answers | 0
