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Janee


Last seen: 4 days 前 |  自 2023 起处于活动状态

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统计学

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Trying to understand the implementation of boundary conditions in this MATLAB code
I am following with the textbook: Lloyd N. Trefethen, Spectral Methods in MATLAB, SIAM and trying to understand a very particula...

15 days 前 | 0 个回答 | 0

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Chebyshev Differentiation Matrix using two methods in MATLAB
I am trying to compare between two ''methods'' or functions that calculate the Chebyshev differentiation matrix. The first metho...

2 months 前 | 1 个回答 | 0

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Understanding FFT in MATLAB
I am exploring the differences between fftw in MATLAB and C/C++. I think this maybe a straightforward question but for some reas...

4 months 前 | 1 个回答 | 0

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Why is my code returning incorrect result?
I have two codes that solve the same problem, but one is returning the correct solution and the other is not. I don't seem to se...

5 months 前 | 1 个回答 | 0

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How to subtract two column vectors properly?
I am trying to calculate the discretization error in my code which is simply the difference between my numerical solution and ex...

6 months 前 | 1 个回答 | 0

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Error: Incorrect dimensions for matrix multiplication
I have the following code which is an iterative solver that solves for a linear poisson's equation as a simple test: clearvars;...

9 months 前 | 1 个回答 | 0

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Error: Warning: Matrix is close to singular or badly scaled. Results may be inaccurate.
I am getting this error after implemnting my BCs: clc; clear all; N=30; % compute the chebyshev differentiation matrix and x-...

10 months 前 | 2 个回答 | 0

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