HWIK

Last seen: plus d'un an il y a | Actif depuis 2020

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Chemical engineering student

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Error: "The application encountered an unexpected error and needs to close. You may want to try re-installing your product(s). More information can be found at:""
Hi, I'm trying to uninstall a bunch of toolboxes to free up some space on my computer, and when I go to the uninstaller program ...

plus de 3 ans il y a | 1 réponse | 0

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draw two curves in matlab
Try this: x=[0:25:200]; y1= [0.4 0.29 0.21 0.19 0.13 0.11 0.09 0.05 0.006]; y2= [0.45 0.27 0.231 0.202 0.12 0.13 0.11 0.062 0...

environ 4 ans il y a | 0

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merge two datetime arrays into one datetime arrays
There might be something more efficient but this should work: dt = datetime(strcat(string(date')," ",string(time')))

environ 4 ans il y a | 0

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Plot an ODE solution with different constant values.
Is this what you are looking for? clear syms y(x) ode = diff(y,x) == (1.5 - 0.8*y) / (0.5 + 0.8*x); sol = dsolve(ode); y1 =...

environ 4 ans il y a | 0

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Optimization problem giving inconsistent answers upon changing initial guesses
Hi, I want to solve the following optimization problem from Optimization of Chemical processes: Here is what I have done so...

environ 4 ans il y a | 1 réponse | 0

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Question

Why can't Matlab do the factorial of a non-integer number?
Hi, I tried using the factorial function on a number with decimals and got the following error: N must be an array of real non...

environ 4 ans il y a | 5 réponses | 0

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The graph for the ODE45 function does not work
I think the script where you use ode45 is correct, because I don't see any errors there, and using a different method I get the ...

plus de 4 ans il y a | 0

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Scale on x-axis
Try this: set(gca, 'XTick', 0:0.2:0.8)

plus de 4 ans il y a | 0

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Help with odes and two different reactions
Just write a function for the ODEs and feed it to the solver: function out = name_your_function(tspan, inputs) %Get your input...

plus de 4 ans il y a | 0

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sym: how to subs two variables
From what you pasted I think you have a symbolic expression not function. I'm guessing you have some values of par1 and par2 a...

plus de 4 ans il y a | 0

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differential equations system to be solved on matlab code
This code should work, but you must specify your initial conditions. You might want to look into other ode solvers, as with thes...

plus de 4 ans il y a | 0

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MATLAB script to find the angle (in degrees) between two vectorsScrip
This has already been answered here: CosTheta = max(min(dot(u,v)/(norm(u)*norm(v)),1),-1); ThetaInDegrees = real(acosd(CosThet...

plus de 4 ans il y a | 0

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How can I ask Matlab to adjust a parameter in an equation until the answer becomes equal with a predetermined input value?
I'm not sure I quite understand the description but here is my go at it: function Actual_area = call_it_what_you_want(V,ht,Area...

plus de 4 ans il y a | 0

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Solving ODE in MATLAB with pre-defined steps
I'm affraid that is not an option, this question was answered pretty clearly in this post. If you want specific points I sugges...

plus de 4 ans il y a | 0

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select the correct row in a table with a different index in the for loop
Is this what you are looking for? for i=1:5:1440 j = i==1:5:1440; end Where j would be your new index in sequential orde...

plus de 4 ans il y a | 1

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How to simultaneously use logical indexing and date time indexing in a timetable?
Not to delete this question, I will answer it with what I found to be the closest to what I wanted through some documentation. ...

plus de 4 ans il y a | 0

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Question

How to simultaneously use logical indexing and date time indexing in a timetable?
Hi, Let's say I have a timetable with one of the variables being logical indexes, and I want to extract data from this timetabl...