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Jamie Al


Last seen: 2 giorni fa Attivo dal 2020

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Domanda


Error using Spherical harmonics: Array dimensions must match for binary array op.
I am trying to use the spherical harmonics to represnet a perturbation of a spherical object in an acoustic and fluid flow in 3D...

21 giorni fa | 1 risposta | 0

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Domanda


Error: "filename" must be a string scalar or character vector.
I am trying to sort of creat an animation of a bunch of text files. The thing is, these text files are techically 3D matrices co...

circa un mese fa | 2 risposte | 0

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Domanda


How to save and read a 3D matrix in MATLAB?
I am sort of confused how to go about this issue. I am trying to write a function in C++ that saves a 3D matrix in a text file a...

circa un mese fa | 2 risposte | 0

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Domanda


How to make color plots in 3D?
I am using isosurface to create 3D plots, but the colors aren't what I want. I have two examples with 2D plots with nice colorma...

circa 2 mesi fa | 1 risposta | 0

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Domanda


How to print a 3D matrix to a text file?
How can I save the following 3D matrix in a text file using MATLAB? Nx = 4; Ny = 4; Nz = 4; x = (0:Nx-1)/Nx*2*pi; ...

circa 2 mesi fa | 1 risposta | 0

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Domanda


Error: Edge vector must be monotonically non-decreasin with isosurface
I have the following code where I am taking 3D FFT for 3D matrix and comparing its derivatives to the "exact" values, but I am g...

circa 2 mesi fa | 1 risposta | 0

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Domanda


how to plot a circle in MATLAB with inner concentric circles?
How can I create this following plot, the black circle showing the Northern polar view with the magnetic local times (MLT) and c...

4 mesi fa | 1 risposta | 0

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Domanda


What is the difference between backward slash vs forward slash in MATLAB?
I have a failry simple question in MATLAB. What s the difference between the backslash operator vs the forward slash operator. F...

5 mesi fa | 3 risposte | 0

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Domanda


How to save 3D data in text file?
I am trying to print my 3D data in a text file so I can perform some postprocessing. The form of my 3D data is the following: %...

6 mesi fa | 1 risposta | 0

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Domanda


performing linear regression fits using cftool based on data points
I want to use the MATLAB curve fitting tools (cftool) to prediction intervals (compute 95% prediction intervals about th linear ...

7 mesi fa | 1 risposta | 0

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Risposto
I am getting Error: Error using * Arguments must be 2-D, or at least one argument must be scalar.
So I was able to resolve this issue, by indexing in a very specific way: [X,Z,Y] = meshgrid(x,zgl,y); %now this is a Z-by-X-by-...

8 mesi fa | 0

| accettato

Domanda


I am getting Error: Error using * Arguments must be 2-D, or at least one argument must be scalar.
I have a 3D function where I am testing taking derivative along x,y, and z direction. My issue is that taking derivative wrt z i...

8 mesi fa | 1 risposta | 0

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Domanda


How to take fft along a specific direction?
I have this function that's periodic in x but non-periodic in y and I was able to perform fft along the periodic direction in th...

8 mesi fa | 1 risposta | 0

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Domanda


Animation using multiple frames/figures in for loop
I have the for loop that plots different frames of data, but I am trying to update all my frames in one figure to create an anim...

10 mesi fa | 1 risposta | 0

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Domanda


Movie function with subplots: error "Unrecognized method, property..."
I am trying to create an animation for different data frames, I keep getting the error: Unrecognized method, property, or field...

circa un anno fa | 1 risposta | 0

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Domanda


How to create animation of multiple of frames using for loop ?
I have the following code that plots text file data. However, here I chose few text files to represent and plot. I would like to...

circa un anno fa | 1 risposta | 0

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Domanda


Why am I getting: "invalid syntax at "(" .A might be missing a closing ")"
What is messing here?? source = ((-4*A^2*alpha)-(9*B^2*alpha))*(cos^2( (2*A) * XX).* sin^2( (3*B) * YY))... -( (5/2)*4...

circa un anno fa | 2 risposte | 0

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Risposto
How to load two text files and find the difference between them?
The answer is as stated by Ive J!

circa un anno fa | 0

| accettato

Domanda


How to load two text files and find the difference between them?
I have some text files with numerical data basically bunch of numbers that I am trying to compare between the two. I wanna subtr...

circa un anno fa | 1 risposta | 0

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Domanda


Why do I get "complex" arrays?
I am not supposed to get complex values but unfortunatley something is wrong in my eigenvalue caclultions. When plotting I get t...

oltre un anno fa | 1 risposta | 0

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Domanda


Why Do I keep getting NaNs in my code???
I have posted the full code but I generally do not umderstand why??

oltre un anno fa | 1 risposta | 0

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Domanda


How to save part of the data in text file?
I have the following plots at different time steps, I would like to save the data at the last time step in a text file. How can ...

oltre un anno fa | 1 risposta | 0

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Domanda


Help indexing: How to index at the interfaces of cells and not the cells
I am struggling to understand how to setup some indexing problem in MATLAB. If my entire domain is defined from 1 to N with a pa...

oltre un anno fa | 2 risposte | 0

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Domanda


Unable to perform assignment because the size of the left side is 8-by-1 and the size of the right side is 8-by-1001.
I am getting this error where I am sure the size of the left-side = the right side in this code, what else can be causing this p...

oltre un anno fa | 1 risposta | 0

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Domanda


Plot error: Index exceeds the number of array elements (104).
I am having the following error with plotting : Index exceeds the number of array elements (104). Error in MUSCL_main (line ...

oltre un anno fa | 1 risposta | 0

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Domanda


Error: Not enough input arguments
I have the following error in my Runge-Kutta (4 stage) function: Not enough input arguments. Error in RK4 for j = 2:N-1 % E...

oltre un anno fa | 1 risposta | 0

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Domanda


Index in position 2 exceeds array bounds (must not exceed 1001)
I have the following code with the error: Index in position 2 exceeds array bounds (must not exceed 1001) my code dx = 0.001;...

oltre un anno fa | 1 risposta | 0

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Risposto
Warning: Imaginary parts of complex X and/or Y arguments ignored.
Thanks, but I found the error was a negative sign in a rooted term that needed an abs function to solve it.

oltre un anno fa | 0

| accettato

Domanda


Warning: Imaginary parts of complex X and/or Y arguments ignored.
I keep getting this error messgae when plotting some quantaties. My code points out that U_T is a cmplex double which is not tr...

oltre un anno fa | 1 risposta | 0

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Domanda


Root finder solver for cubic equation
I have the following cubic equation in beta, knowing gamma, theta and M1 how can I find the roots of beta using MATLAB? for...

oltre un anno fa | 1 risposta | 0

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