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gonzalo Mier


Last seen: 4 meses hace |  Con actividad desde 2017

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How can I plot all iterations of my for loop?
Right now, each plot is plotting only one point. To achieve the behavior you want, create the vectors and plot them outside the ...

más de 3 años hace | 1

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Pregunta


How to find if a symbolic operation contains a or function?
I'm trying to find if a symbolic equation has the 'or' function or not. I have tried to do this: syms a b has(a|b,'or') % log...

más de 3 años hace | 1 respuesta | 0

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Respondida
How to change the parameters of a loop
figure; for i=1:9 A(((i-1):i)*9+1) = instructions(i) plot(A(((i-1):i)*9+1)) end

casi 5 años hace | 0

Respondida
Setting pixel to maximum color values in grayscale image.
You can use uint8 to saturate all the values between 0 and 255. You can test it as: gray_as_RGB = uint8(repmat(grayimg, [1 1 ...

casi 5 años hace | 0

Respondida
How to solve this question?
Oh, a really interesting problem. Lets try to solve it as easy as possible... Lets propose some ideas: Sum two constant numbe...

casi 5 años hace | 0

Respondida
Standard deviation of decimal numbers
The error you are obtaining is less than 1e-15, which is 0 in practice. If you want to consider this case, you can use a thresho...

casi 5 años hace | 1

Respondida
Norm function for 2 variables
n = norm(v) returns the Euclidean norm of vector v. This norm is also called the 2-norm, vector magnitude, or Euclidean leng...

casi 5 años hace | 0

Respondida
PARFOR Transparency violation error
Parfor loop don't work in GPU, it just multithread your CPU code, so you have to be careful with the variables you use because a...

casi 5 años hace | 0

Respondida
What is the fastest way to compute the first eigenvector?
Read about eigs

casi 5 años hace | 0

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Respondida
Why do i get a blank graph?
You are computing v1 as k1= 0.8*exp(-Ea1/(alpha*R*X(3))); v1=k1*A*X(1); v1 is a matriz of size 1x1. So when you do plot( "v...

casi 5 años hace | 0

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Respondida
How to import a 3D Python numpy array into Matlab ?
https://stackoverflow.com/questions/10997254/converting-numpy-arrays-to-matlab-and-vice-versa

casi 5 años hace | 0

Respondida
Is it possible to do multiple array of data on the same scatter plot;
Scatterplot is a really special function that needs a special syntax to plot more that one scatterplot together. If you need mo...

casi 5 años hace | 1

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Respondida
could anyone help me to solve my question
You don't need if here. You can mix them as: C = B; len_A = min(size(B,1),size(A,1)); C(1:len_A,:) = C(1:len_A,:) - A(1:len_...

casi 5 años hace | 0

Respondida
How do I create a matlab function using polyder that not only gives the coefficients but also gives the equation
I think you need here the function poly2sym: https://www.mathworks.com/help/symbolic/poly2sym.html

casi 5 años hace | 0

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Respondida
Needs derivative w.r.t. ' y ' & then graph w.r.t ' t '
diff is a function of the symbolic package, so when you try to derivate U, you are derivating a constant, and by a constant, so ...

casi 5 años hace | 0

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Respondida
Extracting histogram each row of matrix
Read histogram

casi 5 años hace | 0

Respondida
Matlab plots y axis values in plot for array of x arrays
There is no problem here. Matlab is doing what you want. The problem that you see may be because you have one row that is in a l...

casi 5 años hace | 0

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Respondida
how can i make histogram without missing value(with nan,isnan)
You can remove nan before computing the histogram histogram(ws(~isnan(ws(:))))

casi 5 años hace | 1

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Respondida
How to get string field from struct with each element separated
The problem is you are using char instead of string. '1.33' is a vector of char, so if you make a vector of vectors, it compiles...

casi 5 años hace | 0

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Respondida
how i can change the explicit code to implicit code?
function [T,x] = example(c,k,p,dt,dx) alpha=k/(p*c); lamda=alpha*dt/dx^2; for n=1:4 T(n,1)=100; T(n,6)=25; end fo...

casi 5 años hace | 1

Respondida
how to find local minima of a graph like shown in the figure?
Read findpeaks

casi 5 años hace | 1

Respondida
find largest magnitude in array
A=[-0.1;1;-5;-0.8;-0.4]; tto=find(abs(A) == max(abs(A))) tt=find(abs(A) ~= max(abs(A)))

casi 5 años hace | 0

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Respondida
how can i use several loops
I will try to explain as best as I can. To do that, I will give values to the variables. nt = 4, nx = 5: for k=1:3 ( = [1,2,3...

casi 5 años hace | 0

Respondida
Correlation between two row matrices
Like that, each value of "a" is correlated to each value of "b", but applying the formula of the correlation, the correlation o...

casi 5 años hace | 2

| aceptada

Respondida
Using function simple equation doesn't work
Next time, I ask you to add more info so people can help you easily and not only with a photo. The problem here is the block f...

casi 5 años hace | 0

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Respondida
How to display multiple images (non indexed images) with different sizes in a row?
I would use moon1, moon2 and moon3 as 3 images that can be different and with different size, but I will obtain them as moon1 =...

casi 5 años hace | 0

Respondida
Adding Dot For Linspace
You have two possibilities here: In the text file, you replace * by .* and / by ./ in all the document (there is an option in t...

casi 5 años hace | 0

Respondida
How can I simplify my expression?
It only needs more time to simplify: I'm doing: simplify(4.0475406620140304336968591117778*Ua + 0.048633477607650367346402317...

casi 5 años hace | 1

| aceptada

Respondida
how to plot decaying exponential
Congratulation! You have your algorithm almost working, but you are using vector when you should be using scalars (As you have y...

casi 5 años hace | 0

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Respondida
How do I add numbers in a cell to another cell?
A{1}(B{1}==X) = B{1}(B{1}==X)

casi 5 años hace | 0

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