Walter Roberson
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Content Feed
Install add-ons through commandline/headless?
It is possible, using matlab.addons.install() https://www.mathworks.com/help/matlab/ref/matlab.addons.install.html However, t...
circa un'ora ago | 0
how to get the position of a line in from a 2D matrix data.
See improfile() https://www.mathworks.com/help/images/ref/improfile.html#d123e161936 Note that you pass in endpoints of line s...
circa 2 ore ago | 0
How to do iteration until certain tolerance is achieve?
while abs((psic/psit)+(1/(2*sigma)))<tol That tells us that you are looking for (psic/psit)+(1/(2*sigma)) to become as close to...
circa 2 ore ago | 0
How do I gapfill a vector only if gaps (NaNs) are 10 elements or less?
format short N = 10; x = [1,2,3,5,7,9,10,9, NaN,NaN,5,3,2,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,12,13,14,15,16]; mask...
circa 2 ore ago | 0
Getting different results from function handle & syms for a same equation. How to avoid it?
Remember that when you mix floating point numbers into a symbolic expression, that MATLAB uses the default conversion of floatin...
circa 3 ore ago | 0
fsolve stopped because the problem appears regular
format long g omega0=2*pi*599.585e12; data=(2+0.5i)^2; syms x [1 2] rf = rfpnk(x,omega0,data) sol = solve(rf) [sol.x...
circa 3 ore ago | 0
Combining two surface plots
You can ax = gca; yellow = surf(ax, x, p, a); hold(ax, 'on') M = [1 0 0 1; 0 0 1 0; 0 1 0 0; 0 0 0 0]; hg = hgtransform(ax,...
circa 3 ore ago | 0
I want to generate Three different random Communication Channels and sort it. Please help
h1=(randn(1)+1j*randn(1)); h2=(randn(1)+1j*randn(1)); h3=(randn(1)+1j*randn(1)); z=sort([h1,h2,h3]) Note that by default, so...
circa 4 ore ago | 0
| accepted
What is the difference between the effect of clear and clearvars?
@Kien Pham asked above whether there was a timing difference between clear and clearvars. The answer astonished me: there is a ...
circa 4 ore ago | 1
plz help how can use go to in MATLAB
MATLAB itself does not have a GO TO, and never will. Simulink diagrams sort of have a GO TO but it does not affect flow of co...
circa 6 ore ago | 0
Getting error message, "Execution of script bar as a function is not supported".
which -all bar will show you that you have a bar.m in your path that is not the Mathworks bar function
circa 10 ore ago | 1
| accepted
How do I get a "≤" sign to appear in my function's HELP documentation?
<= is not part of CP1252 https://en.wikipedia.org/wiki/Windows-1252 I am using 2016b In that release, MATLAB did not use UT...
circa 12 ore ago | 0
how to count further?
Where do you transition from state2 to something else? Are you trying to count all the rising edges, ignoring the falling edges...
circa 13 ore ago | 0
quickest way to convert hex to a 16 bit signed integer
format long g N = 100000; HC = ['0':'9', 'A':'F']; data = HC(randi(16, N, 4)); timeit(@() typecast(uint16(hex2dec(data)),'...
circa 13 ore ago | 1
Left and right sides have a different number of elements
x=[11500.2 11477.9 11417.3 11426.4 11413 11382.9 11375.1 11347.9 11351.1 11329.3 11318.9 11343.4 11360.7 11378.4 11414.2 11408.2...
1 giorno ago | 0
Could anyone help me how to save the bar graph in png format.
%applyhatch is a File Exchange Contribution. We need to install it to %generate the graphics to demonstrate the save techniques...
1 giorno ago | 0
If you're using tic, toc, and var=input('prompt'), is there a way for toc to interrupt the user input if they take too long to answer?
Two timer based solutions are shown in https://www.mathworks.com/matlabcentral/answers/119067-how-can-i-set-a-time-for-input-wai...
1 giorno ago | 0
Could someone explain the error: "Array indices must be positive integers or logical values," and also how I'd go about fixing it?
contents = cellstr(get(hObject, 'string')); UnitType = contents(get(hObject, 'Value')); In the situation where nothing is sele...
1 giorno ago | 0
Assignment between unlike types is not allowed for two function in a loop
It looks like your function is returning struct variables. When you have code of the form struct1(index) = struct2 wh...
2 giorni ago | 0
| accepted
Error while evaluating UIControl Callback.
You need to contact your company to have them authorize you to use that toolbox.
2 giorni ago | 0
Using linspace outside of field data areas?
Use scatteredInterpolant() with the Extrapolation Method set to 'none'
2 giorni ago | 0
| accepted
How to remove an unwanted horizontal line at a specific domain on the x-axis?
Your size variable is not in sorted order, but you are using it as the independent variable for the plot, so MATLAB has to draw ...
2 giorni ago | 0
| accepted
Constraints used but not applied (beginner)
E_pv = npv * Apv * Iir(1 - 0:005(Ta((t) - 25)); %all the varibles have scalar values That is invalid syntax. 0:005(Ta((t) - 25)...
2 giorni ago | 1
Reistall matlab with the same license
Yes. Unless the details of the license changed in R2021a (I have not checked the wording for that release), then students are n...
2 giorni ago | 0
error Unbalanced or unexpected parenthesis or bracket
c1 = 1000*Q1*e./(4*pi*(xx1>0).*xx1*sqrt(Dy*Dz)*v).*exp(-v*yy1.*yy1./(4*Dy*(xx1>0.*(exp(-v*(z-H1)*e./(4*Dz*(xx1>0).*xx1)).*(exp(-...
2 giorni ago | 0
Auction Algorithm is not converging due to round off error in dell 7820
min() never does rounding. min() of a single parameter uses bit-for-bit comparisons (since the entire array is always the same d...
2 giorni ago | 1
Can I install a unit of MATLAB for PC to the server?
Mathworks has available several related licenses for that purpose: Networked Named User: the license is made available through ...
2 giorni ago | 0
| accepted
Why is x(:) so much slower than reshape(x,N,1) with complex arrays?
Nx = 256; Ny = 256; Nz = 128; N = Nx*Ny*Nz; A0 = rand(Nx, Ny, Nz); timeit(@() use_colon(A0, N), 0) timeit(@() use_resh...
2 giorni ago | 0
openmp options changed by MATLAB?
Roberto, did you deliberately configure your cluster profile (which might be profile named 'default') to provide more than one t...
2 giorni ago | 0
What functions should be moved to basic MATLAB?
wrapToPi() has obvious uses outside the Mapping Toolbox https://www.mathworks.com/help/map/ref/wraptopi.html
2 giorni ago | 0
