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Naema


University of Ottawa

Active since 2013

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Question


multiply a matrix by a specific value from a vector
Hi : I want to multiply a matrix (resultx) sized 10001x10001 by only one value from etae which is sized 1x50.I want to access o...

9 years ago | 1 answer | 0

1

answer

Question


Matrix dimensions must agree
I am performing a multiplication in the following equation but, I had this error because the sizes of (resultx) and (etae) are d...

9 years ago | 1 answer | 0

1

answer

Question


plotting in 2d with imagesc
Hi : I have a question about the plot command (imagesc). I am overlapping two fields together and when plotted both of them usi...

9 years ago | 2 answers | 0

2

answers

Question


how to read data from a .mat file
Hi: I have a .mat file named Ey1a which I need to use it in my code as one of the inputs. The file contains complex data...

9 years ago | 5 answers | 0

5

answers

Question


vertical axis is flipped
Hi Matlab users: I am facing two strange problems. The first problem is with figure#1; it is inverted in y. The following ...

9 years ago | 1 answer | 0

1

answer

Question


estimate time needed for a code to finish
Hi: I am not sure if my problem can be solved. I ran a code in matlab approximately two weeks ago. I have ran a similar one bef...

10 years ago | 3 answers | 1

3

answers

Answered
how to remove mesh in a figure
Hi: I just found the answer!, it is basically the command (shading flat), I put it after the plot command and it removed the gr...

10 years ago | 2

| accepted

Question


how to remove mesh in a figure
Hi matlab users: I have problem with the attached .jpg image, I wanted to get red of the mesh in it , I have not wrote any grid...

10 years ago | 1 answer | 0

1

answer

Question


Undefined function or variable
<</matlabcentral/answers/uploaded_files/22299/undefined%20variable.png>> Hi matlab users: I was trying to run a code in whic...

10 years ago | 1 answer | 0

1

answer

Question


resize a matrix (1x30) to (1x25)
Hi: I have (g) a matrix with size (1x30) and wanted to resize it to (1x25), how can I do this? I think I should keep the min an...

10 years ago | 1 answer | 0

1

answer

Question


how to set specific limits for a colorbar
Hi : I wanted to write a small code to generate a colorbar with limits from -180 to 180. any help please?

10 years ago | 1 answer | 0

1

answer

Question


inv Matrix must be square
how to invert alpha in the following relation.so if alpha values are from 3 to 11 with 50 steps (size of alpha is "1x50"),...

10 years ago | 1 answer | 0

1

answer

Question


how to generate a matrix from another matrix
Hi: I am having a matrix called "alpha" with size (1x50) and another matrix called "beta" which is related to alpha through the...

10 years ago | 3 answers | 0

3

answers

Answered
code is giving an empty matrix
the data file that is needed to run the code is attached (jamal_240) which is named Eyspp in the code.

10 years ago | 0

Answered
code is giving an empty matrix
the code is organized here, is there anyone who could help me figure out what is wrong with the code? thanks, Naema clear...

10 years ago | 0

Question


code is giving an empty matrix
Hi: I am having an empty figure as the result, can anyone see what is the problem?. thanks, here is the code///////////////...

10 years ago | 2 answers | 0

2

answers

Question


2d Integration with trapz crashes
Hi: I am wondering why trapz crashes when I run it in the matlab live link from Comsol. any answer? thanks, Naema

11 years ago | 0 answers | 0

0

answers

Question


2d double integral with trapz
Hi: I am using Comsol to connect to matlab and run the following code. For some reason, the function trapz crashes. It was wor...

11 years ago | 0 answers | 0

0

answers

Question


surface plasmon field scans an optical fiber field
Hi Everyone:I designed a code for this problem but somehow it is not giving me the expected result. That is why I thought maybe ...

11 years ago | 0 answers | 0

0

answers

Answered
surface plasmon field scans an optical fiber field
I do not know why my code looks that way. Can I upload a txt file here? if yes, please tell me how. thanks

11 years ago | 0

Question


surface plasmon field scans an optical fiber field
Hi Everyone: I am attaching my code which is about a surface plasmon field scans an optical fiber located in a much bigger doma...

11 years ago | 4 answers | 0

4

answers

Answered
surface plasmon field scans an optical fiber field
clear all; close all; clc; %%%%inputs%%%%%%%%%%% x1=-5:1e-3:5; y1=-5:1e-3:5; step=30; %step size 1=1...

11 years ago | 0