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Jani


Last seen: nästan 3 år ago |  Active since 2021

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I want to make a GUI in which only those functions run whose radio button is on, but how to make it?
Suppose I have 5 differential equations, but I only want to run and plot those, whose radio button is set 'on', and it's importa...

nästan 3 år ago | 1 answer | 0

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GUI - ODE problem, can someone please help me solve an ode system using guide?
I want to make a user interface with gui, which solves a sysmet of differential equations, and some of the variables (f1 and f2)...

ungefär 3 år ago | 1 answer | 0

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How to discretize a system of spatial and temporal differential equation for mass and heat transfer whit the Euler method?
I want to make a model for the equations which are found in the attached article, and have some questions regarding them. Here ...

ungefär 3 år ago | 0 answers | 0

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How to solve a differential equation system with time and space derivates? Where to write (i, j) (i-1, j) (i, j-1)?
Hi! I am modelling the drying of granulates/particles based on the attached article and equation system which contains time and...

ungefär 3 år ago | 1 answer | 0

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How to plot a circle with polar coordinates in which the colour of the circle changes by data?
Hi! I want to make something like this, which I found in an article. In my work I model the drying of granulates, and the moi...

ungefär 3 år ago | 1 answer | 0

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Question


How can I make a circle which changes its colour with its properties? I show in the attached figure what I mean.
So I modelled how the mositure changes inside a spherical particle as a function of the particle's radius. I have a lot of da...

ungefär 3 år ago | 0 answers | 0

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How can you solve a system of second order differential equation, which is not time, but length and radius dependent?
I thnik it cannot be solved by some prebuild ode integrator, like ode45. I tried using 'for loop', but I don't know, how to solv...

ungefär 3 år ago | 1 answer | 0

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Question


Solving a system of second order differential equations, with length and radial derivates, but the conditions are quite complex to me.
Hi! I want to use for loop to solve these equations (for drying particles in a fluid bed), but there are two things which preve...

ungefär 3 år ago | 0 answers | 0

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Question


Solving system of non-linear partial differential and algebraic equations.
Hi guys! I already had a couple of questions about my fluid-bed drying topic. It is almost over, and I understand pretty much a...

ungefär 3 år ago | 0 answers | 0

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Question


How can a differential equation be solved, if its constants are in a system of equation relation?
So the whole equations are here, but for the sake of simplicity I reduced many of the constants, so I can focus only on the rele...

mer än 3 år ago | 1 answer | 0

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Question


Why I can't integrate a matrix in Matlab?
So for a while it worked, but than I ran the program again, and somehow it doesn't work again, though I did not change the code....

mer än 3 år ago | 1 answer | 0

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