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Find interpolated intersection points between two curves
There are a number of FEX contributions that do this, e.g., https://www.mathworks.com/matlabcentral/fileexchange/11837-fast-and...

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Is there a Matlab built in function to determine the domain of a function?
Perhaps you are looking for assumptions? syms x assume(x>0); f(x)=log(x); assumptions(x)

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Is it possible to concatenate sub-structures within structures into single variables?
A double nested loop could be used, e.g., for A=string(fieldnames(Struct1))' for B=string(fieldnames(Struct1.(A)))' ...

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How do I find the interval in which a function is increasing ?
You would take the derivative and examine where the derivative is non-negative.

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Keeping only rows in a matrix that are above a threshold
For example, subTable = yourTable( yourTable{:,9}>height_F, : )

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Can't improve a near-zero training accuracy for sequence-to-label 1D CNN over a signal datastore
As far as we can say, you've only tried a single combination of training hyperparameters. You need to explore different combinat...

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Updating Structure Input for Functions
If you had as follows, it would work for any fruit, wouldn't it? fruit.Mass = 0.15; %kg fruit.Height = 4; %m

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How do I repetitively shuffle elements in my matrix column-wise?
F=magic(5) [m,n]=size(F); [~,I]=sort(rand([m,n])); J=repmat(1:n,m,1); Fshuffle = F(sub2ind([m,n],I,J))

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Very weird Dot indexing is not supported for variables of this type
You have only passed 3 arguments to DetailGroup when it expects 4. Therefore, it is trying to do operations in which the double ...

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The “fmincon” function did not achieve the result I wanted
clc, w0 = rand(1,5)/5; Aeq = ones(1,5); beq = 1; lb=zeros(5,1); ub=lb+1; tol=1e-14; opts=optimoptions(@fmincon,'StepTo...

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What is the best way to add empty rows to an existing table, to pre-allocate for more data?
T = table(["One"; "Two"; "Three"], [1; 2; 3], ['the'; 'cat'; 'sat'], {{1 2 3}; {4 5 6}; {7 8 9}}) newlength=10; T(newlengt...

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Determine in what interval a variable is
Use discretize. ElapsedTime = [0.13 0.35 0.74 1.02 1.39 1.80 2.50]; t = 0:0.01:ElapsedTime(end); phases = discretize(t, [...

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How to get the value of slopes of pchip at the enpoints?
You don't need to determine the end slopes to extrapolate X. Just use the 'extrap' option to obtain values where desired outsid...

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A Maximum Likelihood estimation with fminunc
Is perhaps the 'quasi-newton' algorithm the wrong choice for a log-function? More likely, the solution is correct, but your ex...

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the directed graph of USA
You can download spatialgraph2D, https://www.mathworks.com/matlabcentral/fileexchange/73630-spatialgraph2d G=digraph([1 2 3],...

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Questions about operation A\B
See flowchart here, https://www.mathworks.com/help/matlab/ref/mldivide.html#bt4jslc-6

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What's the point of 'isinf' function ?
For one thing, it covers cases were the inf elements have mixed signs, thus avoiding the overhead of additional operations like ...

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I have a 64*64 block matrix, each block of size 4*4. I need to extract the diagonals of each block as a vector.
A faster method is to use this FEX download, https://www.mathworks.com/matlabcentral/fileexchange/115340-block-transposition-pe...

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How to know how many pixels are a millimeter in my image?
You need to know the length in millimeters of a particular object or feature in the image to make that conversion.

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Why does fmincon give me wrong results?
The problem has a very simple analytical solution. Why use fmincon at all? [fval,i]=max(2*(x-1)^4, 2*(x+1)^4); dx=2*i-3; In...

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Improving the efficiency of triple nested loop
It seems like you could just use bwdist, poresize = 2*max(bwdist(tiff),[],'all')

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Error Network: Missing output layer
The "output layer" referred to by the error message doesn't refer to the final decoder in the network. An output layer is a spec...

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How can I add ANN as an objective function or boundary conditions for GA?
Just call the predict() method wherever you need it.

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How to move current account information to new computer ?
Depending on your license, you may be able to install Matlab on up to 4 computers. If this is your 5th computer, you may need to...

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Intersection of areas via polyshape
pgon1 = union(regions(polyshape(vertice1,'Simplify',1))); pgon2 = union(regions(polyshape(vertice2,'Simplify',1))); plot([...

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Can we use implicit array expansion across = sign?
2/ Does it matter? Is the memory overhead in using repmat irrelevant? It could matter. Most people would probably not bother to...

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Retrospectively add graphs to tiled layout
Yes, change the Parent property of each of your plot axes from their initial figure window to the tiledlayout. plot(rand(1,5),'...

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Problem In parfor loop
I would get rid of the first for-loop and use interp3 function [D] = ReducedData_DelayShift_Calculate(x_coordinates, y_coordina...

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How do I train an existing shallow neural network with new data?
No, it does not forget them, as seen from this example, which talks about resuming a previous training attempt, https://www.mat...

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Error using nnet.internal.cnngpu.convolveForwardNDBuiltin. Maximum variable size allowed on the device is exceeded.
You can use the memory command to see how close you are to your RAM limit. Basically, though, I would take the error at face val...

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