Answered
Finding indices when the curve stops decreasing
Suppose the maximum was at index im. Then take: dyrgt = diff( y(im : end) ); dylft = diff( y(im : -1 : 1) ); irgt =...

ungefär 10 år ago | 0

Answered
how i can solve a system of 5 equation where there is numbers
You should be able to get a symbolic solution - makes no difference what the values of the parameters are. They don't come into ...

ungefär 10 år ago | 0

Answered
I have a time domain signal.I want to calculate energy of my signal......
Your time values are more or less uniformly spaced with some slight variation but that shouldn't matter. Just type in the exact ...

ungefär 10 år ago | 0

Answered
how i can solve a system of 5 equation where there is numbers
Check the symbolic toolbox and "Mupad" that comes with it.

ungefär 10 år ago | 0

Answered
Im getting the Error using inv Matrix must be square. error.
Instead of: t4=atan((a*sin(t2)+k)/(a*cos(t2)+d)) f=(a*cos(t2)+k)/cos(t4) did you mean: t4=atan((a*sin(t2)+k)./(a...

ungefär 10 år ago | 0

Answered
I have a time domain signal.I want to calculate energy of my signal......
Use the fft() function to calculate fourier transform. Then take the of squares of the coefficients: F = fft(X); pow = ...

ungefär 10 år ago | 0

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Answered
How can you avoid for loops by using vectorization?
The ratio of TotalCounter to ErrorCounter is extremely high. For just j = 4, TotalCounter goes up to 456,513. I didn't check ...

ungefär 10 år ago | 0

Answered
MATLAB coder - how can I add fields to an existing struct?
There are many restictions in converting Matlab to C via coder. Coder emits C code on the fly as it parses the .m file. It looks...

ungefär 10 år ago | 0

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Answered
How do you sum the number of boxes in this cell array?
You've got the cell referencing wrong. Try: nums = [boxData{2:3:end}]; % Note the square brackets. totalboxes = sum(nums...

ungefär 10 år ago | 0

Answered
Is there a one-step command that identifies the name of the caller workspace
I think there is no option but write one yourself and put it in your library. function name = wkname(wk) if (length(...

ungefär 10 år ago | 0

Answered
How to plot x(i+1,j+1) with respect to i,j from the given data ,code shown in the body?
Hi Abhay, The problem as you as you have stated it is under-determined. What you additionally need are boundary conditions. F...

ungefär 10 år ago | 0

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Answered
converting a minute chart
N = 4000000; C = reshape(Table(:, 4), [2,N/2]); Cmax = transpose(max(C, 1)); C = reshape(Table(:, 5), [2,N/2]); ...

ungefär 10 år ago | 1

Answered
How to get just positive numbers which follows normal distribution?
There is no way to prevent a normally distributed variable from taking on negative values (otherwise you can't call it normally ...

ungefär 10 år ago | 2

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Answered
how to find vertices for a box
How is your rotation expressed? Is it two angles t1 and t2 that are rotations in two planes (say xy plane and xz plane)? In that...

ungefär 10 år ago | 0

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Answered
Mean value in a cell array
Put square brackets around the cellarray contents like: M = [FinalResult{1:16,4}] m = mean(M,2); Putting the square b...

ungefär 10 år ago | 2

Answered
Error in convolution of two gaussians using FFT and IFFT
xstep starts from -10, so the peak of y1 is actually at 15 and the peak of y2 is at 10 (fft() doesn't know about your x-axis). T...

ungefär 10 år ago | 0

Answered
how can remove circle from an image?
If thickness of circle boundary is exactly 1 pixel, then its easy. Loop over each point. For any point, (i,j) there are four ...

ungefär 10 år ago | 0

Answered
Drawing a graph from a rational function. What is the problem in my code?
Star Strider has a point too. However with the values you have, linspace does not actually pass very close to -2 or 2. (Try lins...

ungefär 10 år ago | 0

Answered
Drawing a graph from a rational function. What is the problem in my code?
Since it is a discrete sequence of points, Matlab just connects the last point before -2 with the first point after -2. It has n...

ungefär 10 år ago | 0

Answered
Centering a rectangle using FillRect
You know the screen pixel dimensions. Using this change recta appropriately - its a simple calculation. Right now you have the t...

ungefär 10 år ago | 0

Answered
how to addpath of +folder
Matlab does not allow you to add class directories or package directories individually to the path. You have to add the paren...

ungefär 10 år ago | 0

Answered
Increase undo limit in Matlab editor
More and more, I'm realizing how badly Matlab deals with memory issues, starting from basic things like the editor. Cannot undo ...

ungefär 10 år ago | 0

Question

Increase undo limit in Matlab editor
Is it possible to increase the undo limit in the Matlab editor? It's happened several times that I I've tried to undo a long seq...

ungefär 10 år ago | 1 answer | 0

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answer

Answered
Problem with FFT and IFFT back to time doman, not exactly the first signal.
You have padded the original function with zeros upto the next power of 2. But when you take the inverse fft you only use the le...

ungefär 10 år ago | 1

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Answered
How to get intervals according to conditions of other parameters?
Its a little tricky, unless you have a little more information. For example, do you know the number of increasing runs - call it...

ungefär 10 år ago | 0

Answered
finding multivariate pdf of normally distributed data?
Do you want the histogram of the data. If so, use the hist() function. If you want a theoretical normal marginal pdfs from th...

ungefär 10 år ago | 0

Answered
Why using mldivide to solve high dimension linear equations would cause computational error
To the OP: Try taking different values of the RHS b. I'm pretty sure that for some particular vectors b, even the solution wi...

ungefär 10 år ago | 1

Answered
How to get a geometric sequence?
Use the .^ operator and matrix multiplication T = v.^(0:9) * T1; T = ones(100,1)*T; T = T(:); Alternatively (maybe...

ungefär 10 år ago | 0

Answered
[HELP NEEDED] loop over folder? and save them?
Assuming you want folder name, variable name and mat file name to be same: prodir_0 = 'C:\Users\user\Desktop\thesis' sav...

ungefär 10 år ago | 1

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Answered
How can I make the algorithm finish the iterations with the specified tolerance?
Just as you have added the tag, "iterative solutions oscilate around the exact solution" yourself, this may be what is happening...

ungefär 10 år ago | 0