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Error using assignin in a nested m function
Error using assignin Attempt to add "q" to a static workspace. Error in syms (line 283) assignin('caller', x, xsym); Err...

2 mois il y a | 2 réponses | 0

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Question

assigning values with []
[a,b]=[1,2] Why doesn't this work? How to rewrite into what is easier and more succinct than a=1; b=2? Just to respond to al...

9 mois il y a | 1 réponse | 0

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Question

easy solution: log scale plot for data with positive and negative data
semilogy and set(gca, 'YScale', 'log') don't work for negative data. There's user written functions resolving this but is there ...

9 mois il y a | 1 réponse | 0

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Question

function name as a variable
Is it possible to do the following? variablefun.m function variablefun(fun) fun function fun1 end function fun...

10 mois il y a | 1 réponse | 0

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Question

what PDE types can solvepde solve
What PDE types can solvepde solve? Is solvepde just femlab in the past?

10 mois il y a | 1 réponse | 0

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Question

taking difference of 2 surf figures of different sizes
One is to compare two solutions and study the error by taking their difference. The two solutions are two surf figures generated...

environ un an il y a | 2 réponses | 0

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extract fig into surf(x,y,z)
both answers are great. I don't know which to accept.

environ un an il y a | 0

Question

comsol LiveLink for MATLAB: output specified solutions under several studies
There are several solutions under several studies in .mph comsol models. How to output a specific solution in LiveLink for MATLA...

environ un an il y a | 1 réponse | 0

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Question

comsol LiveLink for MATLAB: output solutions on a specific line (in reference or current configuration)
In a 3D comsol model, how to output the solution on a specific line (in reference or current configuration)? In .mph comsol mode...

environ un an il y a | 1 réponse | 0

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Question

no surf in comsol, is matlab live link a solution?
There's a solution u(x,t) in comsol, x and t are spatial and temporal coordinates. There's no surf function in comsol. Can m...

environ un an il y a | 1 réponse | 0

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Question

extract fig into surf(x,y,z)
There's a .fig that plots n z(x) curves, each of which corresponds to 1 y value (n=3 in the illustration). The y values are know...

environ un an il y a | 1 réponse | 0

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Question

code to tell mlx or m files
M and mlx files work slightly differently in outputting figures in separate windows or within the code file. I hope to have an m...

environ un an il y a | 1 réponse | 0

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Question

reshape data to fit into surf/contour
nodalPositions is a 2*100 double matrix storing the nodal positions of a PDE on a 2D domain with 100 nodes. x=nodalPositions(1,:...

environ un an il y a | 1 réponse | 0

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Question

speed control of exporting animations in mlx
There's a little button of 'export animation' on the bottom right of each animation made in mlx. Though 'playback speed' can be ...

environ un an il y a | 1 réponse | 0

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Question

code folding in live scripts
Is code folding in live scripts possible as in .m?

plus d'un an il y a | 1 réponse | 0

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Question

save animation in subplot
I'm using while drawnow;hold off end to create an animation. But this animation is just the 6th position as in subplot(2...

plus d'un an il y a | 1 réponse | 0

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Question

blank matlab icon on taskbar after a change in matlab directory.
The original matlab directory is c:\matlab\r2023 and r2023 was moved to c:\ to replace c:\matlab and renamed as matlab r2023. M...

plus d'un an il y a | 1 réponse | 0

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Question

plot in designated subfigures in loops
I have the following code. I want to plotsubfigures as required in the comments in main.m. How to plot in designated subfigures ...

plus d'un an il y a | 1 réponse | 0

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Question

remove inf in quiver
I want quiver(X,Y,u,v), but there's inf entries in u and v at positions x=y. I'm looking for the smartest way to skip these posi...

plus d'un an il y a | 1 réponse | 0

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Question

smart function to switch functions
Suppose I want to tune different ode solvers to run: ode23(@fun,...) I want to use 'odesolver' so that odesolver(@fun,...) ac...

plus d'un an il y a | 3 réponses | 0

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Question

call function name in the same function
In a function, I need to run this function somewhere within the function like function fun i=1 if i>1 function name ...

plus d'un an il y a | 1 réponse | 0

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Question

Save and load models in phase plane app
Though there are Save and load buttons in phase plane app, I don't think they work. I never find any models saved.

plus d'un an il y a | 1 réponse | 0

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uicontrol doesn't work in Matlab 2023a
figure;pauseButton=uicontrol('Style','pushbutton',... 'String','pause','Position',[2000 60 100 100],... 'Callback',@(s...

plus d'un an il y a | 1 réponse | 0

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Question

vectorization examples for efficiency
I wonder if the following expressions are already optimized forms for computational efficiency and if not how to rewrite them? ...

presque 2 ans il y a | 1 réponse | 0

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Question

multiple actions following @(src,event) in uicontrol
How to add another action or function to the following Button=uicontrol('Style','pushbutton', 'String','pause','Position',[1800...

presque 2 ans il y a | 1 réponse | 0

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Question

Smart way of adding paths
For those using multiple PCs, it is necessary to use a smart way of adding paths. How is it possible to add paths like: a='c:\...

presque 2 ans il y a | 1 réponse | 0

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Question

role of flux f in bcfun of pdepe for systems of PDEs
To solve utt=uxx, as the flux term f has a 0 entry in pdefun, the same f is in bcfun. In bcfun, there's q(x,t)f(x,t,u,ux), which...

presque 2 ans il y a | 1 réponse | 0

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Question

functions don't take effect
When calling a function involving multiple other functions where some changes are made, new changes don't take effect even when ...

presque 2 ans il y a | 1 réponse | 0

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Question

uicontrol to start over a loop
uiwait/uiresume through uicontrol can be used to pause/continue a loop. Is there a corresponding ui+... to start over a loop fro...

presque 2 ans il y a | 1 réponse | 0

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Question

concatenate multiple 'OutputFcn' options in odeset?
Is there a way to output both odeplot+odephas2 after modifying the following? options=odeset('OutputFcn',@odeplot,'OutputFcn',@...

presque 2 ans il y a | 1 réponse | 0

1

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