Answered
How to accurately find angle between these two vectors ? (Data Provided).
I don't know what your ultimate purpose is with this rotation you are trying to perform. If the goal is to make the two loci ove...

9 days ago | 1

Answered
Matlab help is not working
Make sure that you are not overriding any functions called by help.m with mfiles of your own. For example, if you have your own ...

9 days ago | 0

Answered
Index in position 1 exceeds array bounds (must not exceed 2).
How can To(t,1) make sense when t becomes greater than 2? To is only a length 2 vector.

9 days ago | 0

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finding the distance between points of boundaries
If you have the Statistics Toolbox, you can pdist2 https://www.mathworks.com/help/stats/pdist2.html D = pdist2(Red,Green)

9 days ago | 0

Answered
How to accurately find angle between these two vectors ? (Data Provided).
function [theta, Nrm]=vecrot(vstart,vend) %Find rotation carrying one vector toward another about their common perpendicular ...

9 days ago | 0

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Answered
How can one create this matrix, part 3
[X, Y, Z] = ndgrid( 1:.1:1.5., 0:.1:0.5, 0:.1:0.5); [Z(:), Y(:), X(:)]

9 days ago | 0

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Answered
How to find a specific value from a matrix having columns within columns
You haven't mentioned in what form you are holding this data, but my recommendation would be to hold it as a 3x4x5 matrix, A. Th...

9 days ago | 0

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Answered
Image denoising using uniform cubic b spline
Have you tried csaps? https://www.mathworks.com/help/curvefit/csaps.html

9 days ago | 0

Answered
How do I create a sliding window and/or bin that records the number of elements over a given time period
t1 = 20; %start time, seconds t2 = 30; %end time, seconds win=tim_trl>=t1 & tim_trl<=t2; time = tim_trl(win); %10s window ...

9 days ago | 0

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Answered
Linear Constraint Fmincon Function Form
I have currently created a nonlcon function for it but it is linear so I don't know the effect of doing this? There's nothing ...

10 days ago | 0

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How to calculate mean in moving cubic volume?
I know I need to use mat2cell and mean function. I don't think you do. Let's call your 3D volume, V: [ci,cj,ck]=deal(51,51,251...

10 days ago | 0

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Answered
I'm looking if there anyone can share with me the code of optimization with multi-objective?
The best place to look for shared code is on the File Exchange. I see there is at least one MPSO offering here, https://www.mat...

10 days ago | 0

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How to know the current input for fminsearch?
You can use an OutputFcn, https://www.mathworks.com/help/matlab/math/output-functions.html#bsgue2z or simply add a line of cod...

10 days ago | 1

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Answered
K-th order neighbors in graph
function result=distk(G,i,k) % G -graph % i - start node % k - number of steps A=adjacency(G); v=A(i,:); ...

11 days ago | 1

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Answered
Smooth derivative of a matrix
So my question is: is there any way to smoothly connect the eigenvectors of neighbouring k points? Not in general. The eigenvec...

11 days ago | 0

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Second order polynomial curve of best fit
It probably happens because you've chosen too arbitrary an initial guess constant=[0;0;0]. It's clear from your data that these ...

11 days ago | 0

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Answered
Error - Failure in initial objective function evaluation. FSOLVE cannot continue.
Second, I'm not sure why fsolve is having trouble parsing the initial guess. This is not a separate error. fsolve is simply te...

12 days ago | 1

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Answered
can matlab find the row space and null space of a matrix?
Yes, the solution could involve the commands orth() and null().

12 days ago | 0

Answered
Subfunctions in optimization objective function
fmincon does not know or care about the internals of your objective function code. You can do anything there, and call whatever ...

12 days ago | 1

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Answered
Getting meshgrid along different angles for data extraction from a matrix/image?
If you're just trying to generate shaded polygons, it would be simpler just to use impoly, e.g., x0 = 1; y0=1; x1 = 200; y1=50...

12 days ago | 0

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Answered
How can I remove the lines that are not in the cross section of the annulus?
figure(1); % add lj line to temperature profile hold on; for ii...

13 days ago | 2

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Answered
How to construct all possible combinations of points in N-dimensional space
X=[x1,x2,x3].'; Y=[y1,y2,y3].'; [I,J]=ndgrid(1:3,4*(0:N-1) ); P=[X(I(:)),Y(I(:)), J(:)]; d=pdist2(P,P);

13 days ago | 0

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how to draw the intersection of 3 3d objects?
One of these FEX submissions might be helpful, https://www.mathworks.com/matlabcentral/fileexchange/48613-surface-intersection ...

13 days ago | 0

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Answered
How to check if object's property is read-only.
You can obtain that information from a metaclass object for the class, https://www.mathworks.com/help/matlab/matlab_oop/using-c...

13 days ago | 0

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Answered
Comparing elements in a 2d array
>> peak = [0, diff(array(1:end-1))>=0 & diff(array(2:end))<=0 , 0] peak = 0 1 0 0 0 1 0 >>...

13 days ago | 0

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Improving and Optimizing Blurring Function
Using sepblockfun from the File Exchange, https://www.mathworks.com/matlabcentral/fileexchange/48089-separable-block-wise-opera...

13 days ago | 1

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Answered
Nonlinear equation numerical solution
I tryed also with functions: fsolve, roots and find but were all unsuccessful. fsolve is overkill for such a simple 1D problem....

14 days ago | 1

Answered
How to find out zeros and their indices in a matrix?
One way is to use this FEX submission, https://www.mathworks.com/matlabcentral/fileexchange/78008-group1s H=group1s(~input(2,:...

14 days ago | 2

Answered
Is there a way to do these matrix vector multiplications without loops?
First, you would choose a different ordering. Instead of A = rand(m,n,4,4); v = rand(m,n,4); you would have A = rand(4,4,m,...

14 days ago | 1

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Answered
Optimizing systems of non-linear equation using optimvar and lsqcurvefit
Avoid sqrt so as to ensure fun is differentiable fun = @(x,xdata) [((1+4.*xdata.^2.*x(1)^2).^(-2) + x(4))./((1+4.*xdata.^2.*x(2...

15 days ago | 0

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