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Janee


Last seen: 21 days ago |  Active since 2023

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how to flip axes of isosurface plot?
I have a 3D set of data that I am using isosurface plotting to visulaize. The issue if I am trying to visualize my plot from a d...

2 months ago | 1 answer | 0

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answer

Question


FFT of 3D array in MATLAB
I am trying to understand how the FFT of different directions in MATLAB works to reproduce in C/C++ instead. So far I have the...

4 months ago | 1 answer | 0

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answer

Question


Can you explain the difference between the two matrix operations in MATLAB?
I am trying to understand how MATLAB performs the following matrix operations: Example 1: clearvars; clc; close all; Nx = 8; ...

4 months ago | 1 answer | 0

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answer

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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...

5 months ago | 0 answers | 0

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Question


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...

6 months ago | 1 answer | 0

1

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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...

9 months ago | 1 answer | 0

1

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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...

9 months ago | 1 answer | 0

1

answer

Question


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...

11 months ago | 1 answer | 0

1

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Question


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;...

1 year ago | 1 answer | 0

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Question


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-...

1 year ago | 2 answers | 0

2

answers