Niklas Kurz

Last seen: Today | Actif depuis 2020

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Question

Using Matlab to solve 1D Schrödinger Equation (Strange Eigenfunctions)
Following this splendid tutorial (in Python) I tried recreating the code in Matlab First of, here the Python Code: % impor...

environ 9 heures il y a | 1 réponse | 0

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App designer: How to define self-referring properties?
I'm getting into app designer once again, and right from the start I'm getting desperate. When defining a property, I receive a...

4 mois il y a | 1 réponse | 0

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Question

How to convert a string into a variable name and assign it a cell of data?
I've read multiple post: converting a string into a variable name seems quite problematic, but in my case convenient. It's abou...

6 mois il y a | 1 réponse | 0

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How to use string as plot arguments
I was fiddling around a lot: Having two plots, I want to spare some work and define a common string to feed into both plots argu...

6 mois il y a | 1 réponse | 0

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Increasing speed by fixing axis and grid outside of a loop
Heres a minimal example of what I mean: Axis and grid are set before the loop Pos = [0 0]; axis([0 1 0 1]); grid on ...

7 mois il y a | 1 réponse | 0

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While loop with all elements meeting the conditions
How do I set a while loop that runs until all elements meet the condition? For instance: t = -100:200; F = t; ind...

7 mois il y a | 1 réponse | 0

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Question

How to combine 2 function handles of different variables?
Strangely enough I was not able finding an answere to this sinewy problem: Given 2 function handles mu = @(n, dmu, mubar)...

7 mois il y a | 2 réponses | 0

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Using Matlab to create a LaTex document (for image import)
In order to import multiple figures in LaTex from one folder I have found following code: fileID = fopen('./incl_img_latex.t...

environ un an il y a | 1 réponse | 0

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Question

How to give trail to particles/ How to fade out plots with time (complex example)
Inspired from a webproject I have created this n-body-simulation: First of a function to acces on: % calculating accelerati...

environ un an il y a | 2 réponses | 0

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Question

Matlab simulation for planet motion
There were some attemps simulating planetary motion already, but I think mine is straightforward by solving and updating positi...

environ un an il y a | 2 réponses | 0

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Question

How to plot wave function for finite square well? [Physics question]
A question addressed to other physicist among the MATLAB community: Considering a finite sqaure well potential: It turns o...

environ un an il y a | 1 réponse | 0

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LaTex for Titles in Appdesigner now possible?
I'm now finding into appdesigner myself and have saw multiple people asking how to incorporate LaTex. There are some workaro...

plus d'un an il y a | 1 réponse | 0

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Question

How to plot symbolic function with string specification?
Briefly I want to execute syms x f = x fplot(f,'b','LineWidth',2) but a little fancier. I want the specification to be a ...

plus d'un an il y a | 2 réponses | 0

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Question

Matlab wouldn't find simple inverse
Given the function defined via syms x a real; f = x^(a-1) Why Matlab won't find an inverse to that? finverse(f) is resulti...

plus d'un an il y a | 2 réponses | 0

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Question

How to plot vectors exactly on the edge of another graph?
The best I've got is expressed by the following: clear [u,v] = meshgrid(-2:0.2:2); f = u.^2+v.^2-1; [du,dv] = grad...

plus d'un an il y a | 1 réponse | 0

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Matlab warning when using log
I have quiete a long script basically just consiting of comments for plotting pairs of points and customizing the resulting plo...

plus d'un an il y a | 1 réponse | 0

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Question

How to fit a gaussian to unnormalized data
I do know this question has been asked in several kinds plus it's rather a mathematical question for mathstack like sites. But...

plus d'un an il y a | 1 réponse | 0

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Question

Does order of multiplication really matter when using simplify ?
I noticed, when I type the following commands: syms x; syms n integer; cn = int(abs(x)*exp(-i*n*x),x,-pi,pi); cnp = ...

presque 2 ans il y a | 2 réponses | 0

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Question

expand and simplify are not reverse?
I thought any symbolic function that I expand I can simplify getting same results in both direction. But it seems to be just one...