Star Strider
Hic sunt dracones! PROFESSIONAL: Physician (M.D.): Diplomate of the American Board of Internal Medicine; M.Sc. Biomedical Engineering: Instrumentation, Signal Processing, Control, System Identification, Parameter Estimation NON-PROFESSIONAL: Amateur Extra Class Amateur Radio Operator; Private Pilot, Airplane Single Engine Land, Instrument Rating Airplane; Gamer NOTE: I do not respond to emails or personal messages, unless they are about my File Exchange contributions. Time Zone: UTC-7 (Standard); UTC-6 (Daylight Savings/Summer)
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3D surf plot for more than two quantities
One problem is thta your surf calls have the wrong syntax. This works. I made the surfaces partially transparent (the FaceAlph...
3 days ago | 0
Finding coordinates of a point from bisector of two lines
Sure! Fortunately, I kept the code ... clear close all xq = [-1000 0 -200 -1000 -1000]; yq = [-450 0 -1000 -1000 -450]...
3 days ago | 1
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Synchronizing the data of 2 subdevices within 1 device.
I would copy both original data records to appropriate timetable arrays, and then use the synchronize function. It might be ne...
6 days ago | 0
Shading an area between two curves symbolically
It is necessary to get the relevant 'x' and 'y' values from the fplot calls first. You can then use them in the patch call. ...
6 days ago | 1
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Problem istalling ML 2025 on Tower Computer but not Laptop, why?
From the documentation -- Can I use MATLAB Home on 2 computers simultaneously? The MATLAB Home License can only be used on a...
6 days ago | 0
how to plot fabric diagram as in the fig
I have no idea what a 'fabric diagram' is, beyond your description. (An Interweb search produced no useful reslults.) Plotti...
7 days ago | 0
Error: Inputs must be character vectors, cell arrays of character vectors, or string arrays.
I am not certain what result you want, however for string arrays, you can just use arithmetic operators. Try this -- A = ["...
10 days ago | 0
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Symbolic integration: error
I ran your code in MATLAB Online. There are some integrands that simply cannot be integrated and give closed-form symbolic re...
11 days ago | 0
search text in arraycell
This may be more convoluted than it needs to be, however it has the virtue of returning the desired result. I know of no other ...
12 days ago | 0
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datetime error in 2025a version
I may be missing something, however it appears that 'My.Date' is already a datetime array. You do not need to do anything to ...
15 days ago | 0
Populating a tiledlayout vertically rather than horizontally
One option could be to use the TileIndexing property, and set it to 'columnmajor'.
17 days ago | 2
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Adding text labels above bars
A lot of aspects of your code co not match the numbers of labels that you have. Adjucting various aspects of it make other aspe...
18 days ago | 0
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How can I use table() with a variable number of columns?
Something like this seems to work -- data = randn(2,5,4); jj = 1; T{jj} = array2table(squeeze(data(jj,:,1:3)), VariableName...
18 days ago | 0
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Splitting two nearly overlapping curves
It might be possible, however it would likely require a lot of manual experimentation. I experimented with an approach that i...
19 days ago | 1
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Can't use MATLAB on fedora 42
MathWorks is having problems (and has been since 19 May). See the Status page for details. It's mostly backup here in the U....
22 days ago | 0
Can't Watch Tutorial Videos from Mathworks Website.
It's not your browser. See the Status page for an explanation.
22 days ago | 0
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Need a tangent line in my plot like the example provided but I cannot seem to do it
Calculate the numerical derivative, find its value at the desired point on the curve, and calculate the tangent line parameters....
22 days ago | 0
Why am I getting an error installing MATLAB on Ubuntu 24.04
I recently (mid-May 2025) needed to install MATLAB R2025a on Ubuntu 24.04. I downloaded and ran the MATLAB installer app. Th...
24 days ago | 0
i can't download matlab in my computer
See the Status page for details. MathWorks is gradually returning to full capacity. It is essentially 'up' in the U.S., howe...
25 days ago | 1
Spatial, coloured vectors
The quiver3Dpatch File Exchange contribution can probably do what you want. You will need to use the usual quiver3 argument for...
25 days ago | 1
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when installing an add on
You have to create the directory using sudo mkdir. I believe that is all that is required. After that, the installatiion shoul...
2 months ago | 0
Unable to run Matlab r2017a after installation, not desktop shortcut found even in "all apps" section under settings
There could be operating system incompatibilities. See: Previous Releases: System Requirements and Supported Compilers I...
2 months ago | 0
Cannot create or open .m files in Matlab UI.
I doubt any of us on Answers will be able to help you with this. Did your Linux distro update without your knowledge? Do you...
2 months ago | 0
Create a 2D plot with irregular axes
The plot function does not care if the data are not regularly sampled. It wil plot them appropriately regardless. Example — ...
2 months ago | 0
Remove outliers but be careful with end points
The rmoutliers function does not know that the end points are outliers because it has nothing after them to compare with beyond ...
2 months ago | 0
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Extracting data from Fourier spectrum
There are File Exchange contributions that could help you with this: Mueller-Stokes-Jones Calculus and Light Polarization.
2 months ago | 1
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given the function f(x)=X^3 - 6X^2+9X. Find the first derivative of the function of f(x)
Use the polyder function — f = @(x) x.^3 - 6*x.^2 + 9*x; % Anonymouus Function p = [1 6 3 0] ...
2 months ago | 0
How can I change timetable to timeseries?
According to the timeseries documentation, it wants the data values as the first argument, and the time values as the second arg...
2 months ago | 0
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How to expand a matrix and interpolate between values?
This is frustrating. The seconds function should automatically convert the hours to seconds and change the unit as well. T...
2 months ago | 1
closed countour around a given point
This will detect and plot all the closed contours (in addition to a second one at level 12 that does not actually meet the close...
2 months ago | 0
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