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Cannot change support package to the "program files" directory
Answer from AI: The problem is that the MATLAB function matlabshared.supportpkg.setSupportPackageRoot strictly forbids spaces a...
4 hours ago | 0
Equating opposite edges in a repeating magnetostatic PDE problem.
Not easy since the PDE Toolbox doesn't support periodic boundary conditions. I'm also not sure whether equating the solution ...
3 days ago | 0
| accepted
FLexlm feature name Real-Time_Workshop is invalid for using flexlm tool to return license early
Answer from AI: The Flexera (FlexNet) error you are experiencing happens because the standard lmutil lmborrow command struggles...
6 days ago | 0
| accepted
Why is trainlm in train is extremely faster than lm in trainnet options
Answer from AI: The massive speed difference you are experiencing is due to a fundamental mismatch between the network size, th...
6 days ago | 1
MATLAB Academy Task 4 longitude limits are incorrect
Answer from AI: For Task 4 in the MATLAB Academy course, you need to extract the axis limits from the current GeographicAxes ob...
6 days ago | 0
How much time intersect(A,B) takes?
Answer from AI: In MATLAB, the time complexity of the built-in intersect(A, B) function is \(O(N \log N)\), where \(N\) represe...
9 days ago | 1
MATLAB 2026a figure 3d plot does not show azimuth and elevation angles while rotating with mouse.
If you want first-hand information, contact support: https://uk.mathworks.com/support/contact_us.html This is the answer fro...
12 days ago | 0
| accepted
Spurious vertical lines in my time history plots
Answer from AI: This behavior is a known issue in MATLAB usually caused by graphics rendering artifacts (OpenGL) or hardware ac...
21 days ago | 0
| accepted
ppz1 and ppz2 parameters failing to fit / be altered.
Including inflation pressure parameters like ppz1 and ppz2 in the fitting process requires a structured approach because they ar...
22 days ago | 0
How to get back former diagram representation
I don't know if this is what you are looking for, but here is the Answer from AI: You can revert the windowing and sizing beh...
1 month ago | 1
How can I round a MATLAB calculation to a specified number of significant figures?
x = [0.004567 0.04567 4.567 45.67 4567]; significant_figures = 3; format long rounded_x = arrayfun(@(m)round_sig(x(m),signi...
1 month ago | 0
Nonlinear Newton solver fails near resonance for porous moonpool model
You cannot stick to the points "T" that you prescribe in advance to compute "eta". If the Newton solver diverges, you should hal...
1 month ago | 0
Topology Optimization - Multiple Loads with a circle
That's how I understand what changes have to be made to the code (although the free upper left zone isn't properly resolved). n...
1 month ago | 1
| accepted
pinv function is supported for dlarray input while the pageinv function is not supported
Answer from AI: As of the latest MATLAB releases, pageinv does not directly support dlarray inputs. Standard matrix inversion f...
2 months ago | 0
| accepted
How to pass step forcing function in system model to ode15s
You will have to stop the integration when the inputs get discontinuous and restart with the results obtained so far, maybe with...
2 months ago | 0
| accepted
MATLAB Phase Plane App: Can I Increase the Precision of the Reported Equilibrium Eigenvalues?
@Kaylie This is what AI gives as an answer to your first three questions: No, there is no built-in toggle or setting to change...
2 months ago | 0
How to import mf4 file and display in UITable within AppDesigner?
Answer from AI: To read .mf4 (Measurement Data Format version 4) files in MATLAB, use the built-in mdfRead function. This funct...
2 months ago | 1
| accepted
Actualización de la fecha en la expedición de un certificado
Answer from AI: To update the date on your MathWorks certificate, make sure you select the specific current MATLAB release/vers...
2 months ago | 1
Please help me determine positive values of s and h(s,h>0) such that L1 and L2 have opposite signs. Then print L1 and L2
For L1 and L2 to have opposite sign, you can remove equal multiplicative factors in both L1 and L2. So L1d and L2d in L1d=a1*s...
3 months ago | 0
knnsearch() fails when using kdtree NSMethod
This might be an explanation for the different results (from AI): KD-Trees optimize lookups by comparing bounding boxes and spl...
3 months ago | 2
| accepted
How can I make maximum points of curves in 2nd region curves not as triangles?
Use % Plotting each curve with a distinct color and label plot(r_vec(1:100),real(u_vals(1:100)), '-', 'Color', colors(m,:)...
3 months ago | 0
How can I get the limit of function val as mu2 tends to zero & infty?
You must define all parameters involved in the computation of val - either as symbolic variables or as numerical values. Thus ...
3 months ago | 0
| accepted
How can I get the inversion Laplace to function val?
According to the final value theorem, it holds that lim (t -> Inf) f(t) = lim (s -> 0) [s*F(s)] Where: t is the time in the t...
3 months ago | 0
Have I used the global variable in a wrong way?
The global variable has to be set to a certain value before it is first used. So as far as I understand your workflow, you can't...
3 months ago | 0
Unrecognised function or variable helperPlotPaths
If you open the Active Sonar Example in MATLAB Online, you will find this function. https://uk.mathworks.com/help/phased/ug/und...
3 months ago | 1
| accepted
Rapid calculation of the number of points in a circular neighbourhood
Did you try "pdist" ? https://uk.mathworks.com/help/stats/pdist.html But maybe the distance matrix D will become too large in...
3 months ago | 1
| accepted
i have coupled odes with slip boundary conditions.
Can't you deduce an analytical expression for w'' with only derivatives up to first order of the other solution variables and in...
3 months ago | 0
fitting is not working
As far as I can see, the function f(x) = p*(1-2*p./x.*tanh(x/(2*p))) is monotonically increasing (the first parameter params(1) ...
3 months ago | 0
How to call kummerU for a stand alone program
As far as I know, nothing in the symbolic toolbox can be compiled. And "kummerU" is a symbolic function ... Try to find a relia...
4 months ago | 0
Can I solve a symetric system using only the lower triangular portion of the matrix?
Consider A = [0 0;1 0]. Then A is lower triangular and singular. But A + A' = [0 1;1 0] is regular. So why do you think Afull s...
4 months ago | 0
