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Function not returning updated struct
When you create uicontrol, they are created and displayed (if appropriate), and then flow immediately continues onward without w...

1 year ago | 0

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How to rotate domain, but the lon and lat are on the contour (not on the axis)
You need to first calculate the tilt angle of the valid part of the data, then rotate by the negative of that angle so that the ...

1 year ago | 0

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Error using integral2Calc>integral2t/tensor (line 231) Input function must return 'double' or 'single' values. Found 'sym'.
h = 0.00172; rho = 1620; L = 100*h; c=L*L/4; M=10; N=10; syms xi eta shape_w=sym(zeros(M,N)); x_m=sym(zeros(M,1)); y...

1 year ago | 0

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Enable/disable on radio button in app designer
You can create app.bg as a uibuttongroup and populate it with uiradiobutton . Later, you can bc = [app.bg.Children]; set(bc(1...

1 year ago | 0

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Simulation run time vs. PC
https://versus.com/en/intel-core-i7-11850h-vs-intel-xeon-gold-6234 The core-i7 (laptop) is 10 nm compared to 14 nm is 35W p...

1 year ago | 0

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Offline Documentation for macOS AppleSilicon
This is a known issue; https://www.mathworks.com/matlabcentral/answers/2177941-why-am-i-not-able-to-download-the-macos-offline-d...

1 year ago | 0

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Answered
first order PDE , verification of one solution
syms x y real syms f(x_minus_y) v1 = diff(f(x-y),x) v2 = diff(f(x-y),y) ver = v1 + v2 simplify(ver) Which is not zero. I...

1 year ago | 0

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I can't connect the PWM generator G output to the active rectifier output in an EV on-board charging system design
Since you are talking about connecting a "G" gate, I deduce that your PWN block is "PWM Gate Signal Generator (Three-phase, Two-...

1 year ago | 0

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Precision lost when combining Int32 integers with single precision numerical numbers
The general rule is that when you combine numbers of two different types, that the result is the type that is considered more re...

1 year ago | 1

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Using parallel computing to communicate with device
F = parfeval(backgroundPool,@UpdateWeight,1,Scale); F is returned as a future object. % Setup Timer scale_timer = timer('Time...

1 year ago | 0

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concatanate arrays upon condition
At least in R2025a, there is no problem in using "," to concatenate empty datasets, as long as they are empty along either the f...

1 year ago | 0

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how can figure renderer be changed in Matlab 2025a?
The figure renderer cannot be changed in R2025a. This is a fundamental change in R2025a, that OpenGL is no longer used and WebGL...

1 year ago | 0

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Found unsupported division expression for HDL code generation; Signed input data type is not supported for division with Floor RoundMode, at Function 'mod'
You should be doing range reduction. sin(x) for negative x is -sin(-x). You could do something akin to if x < 0 x = 2*pi -...

1 year ago | 1

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Mass importing .txt files with sequential names to plot multiple graphs on same figure for easy comparison
N = 30; files = "FreeField" + (1:N) + ".txt"; S = cell(N, 1); for K = 1 : N S{K} = readtable(files(K)); end for K ...

1 year ago | 1

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Answered
New MATLAB user: Rosetta 2 or Parallels for Apple M1 MacBook pro?
As of R2023b, MATLAB has had a native port for Apple Silicon series (ARM CPU)

1 year ago | 1

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Simulink Matlab Fcn, logical error for incrementation in Goertzel's algorithm
count=single(0); That statement is executed every time the block is executed. You need persistent count if isempty(count); c...

1 year ago | 0

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sprintf vs. compose performance for large arrays on macOS
My understanding is that compose is based on sprintf That is not correct, at least not directly. compose() selects elements "...

1 year ago | 1

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How can we identify the type of traffic in wireless communication?
Uniform distribution (0–180 ms) That is obviously not bursty. Exponential (mean: 180 ms) First we need to calculate the multi...

1 year ago | 0

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Problem istalling ML 2025 on Tower Computer but not Laptop, why?
The most common cause of problems such as these, is if the system with the problem has installed a third-party .m file with the ...

1 year ago | 0

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Live Script calls multiple functions that produce a plot, but only the last one shows up.
Graphics calls that are made directly from LiveScript output in-line, and each time a plot would be erased it instead starts a n...

1 year ago | 1

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Same data - different answers
In the first case, you are typing in 14 significant digits; MATLAB stores at most 15 1/2 significant digits. In the second case...

1 year ago | 0

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where is SupportSoftwareInstaller.exe in Matlab R2025a
It sounds like you are using Mac, as SupportSoftwareInstaller is still available for Windows and Linux. See https://www.mathwor...

1 year ago | 0

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Help with nested for loops
Vectorized version with no for loops: Duse=[D1_0, D1_1, D1_2]; %Array for D-values Kuse=[K1_0, K1_1, K1_2]; Quse=[Q1_0, Q1_1,...

1 year ago | 1

Answered
The code indicates error with response Invalid value for OPTIONS parameter Algorithm
quasi-newton is a valid option for fminunc but not for fmincon See https://www.mathworks.com/help/optim/ug/fmincon.html#busog7r...

1 year ago | 0

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Why does my code return 'Empty sym: 0-by-1'?
You have misframed k = k0 * exp(-Q/(R*T)) . Written as an equation equalling 0, it would be eqn = k - k0 * exp(-Q/(R*T)) == 0 ...

1 year ago | 1

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Answered
How to store this type of data with unknown number of them?
Let us experiment N = 100; A = randi(9,N,1); B = randi(9,N,1); C = randi(9,N,1); D = cell(N,1); for K = 1 : N D{K} = ...

1 year ago | 0

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Answered
Transform variables with underscore symbol into subscripts when exporting to Latex from a Live Script
The key to this is that the left-hand side of an assignment is never formatted. syms t A B f_0 f_1 n positive eqn = f_1 == f_0...

1 year ago | 0

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datetime error in 2025a version
'convertfrom' 'datestr' is not a supported option https://www.mathworks.com/help/matlab/ref/datetime.html#d126e368859 If you ...

1 year ago | 0

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use "set" with trasparent color
Line objects have never supported MarkerFaceAlpha or MarkerEdgeAlpha MarkerFaceAlpha and MarkerEdgeAlpha are used for Scatter p...

1 year ago | 1

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Does sendmail work with TLS v 1.2 ?
https://www.mathworks.com/help/matlab/ref/sendmail.html Note sendmail does not support major email providers such as Gmail an...

1 year ago | 0