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Yuriy Yerin


Last seen: 5 mois il y a Actif depuis 2018

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Integro-functional equation (numerical solution)
Hello everybody. Matlab is great at solving differential equations numerically for instance with the ODE45 solver. Is it possib...

environ un an il y a | 1 réponse | 0

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Question


Extraction data from several implicit plots
Hello everybody. I'd like to extract data from the figure of two plots of implicit functions in the form of txt file according ...

environ 2 ans il y a | 1 réponse | 0

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réponse

Question


Matrix dimensions must agree in a function with the sum
Hello everybody. Sorry for a stupid question but can't resolve this problem. How can I avoid the error "Matrix dimensions mus...

plus de 2 ans il y a | 1 réponse | 0

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réponse

A répondu
plot Landau cylinder and sphere
The problem was solved by means of the code function z=cylinder_plot r=linspace(5,0.1,7); for i=1:7 [x,y,z] = cylinder(r...

environ 3 ans il y a | 0

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plot Landau cylinder and sphere
Hello everybody. I'd like to plot the so-called Landau cylinder in Matlab with number of internal cylinders, something like in...

environ 3 ans il y a | 2 réponses | 0

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Question


Increasing accuracy of Whittaker functions
Hello. I know that there were a lot questions devoted to accuracy of fslove procedure. I'm trying to solve a transcendental e...

presque 4 ans il y a | 1 réponse | 0

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Question


Plot implicit function with the summation inside
Hello. I'm trying to plot an implicit trancendental function with the summation inside the expression. Here my code: function ...

environ 4 ans il y a | 1 réponse | 0

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réponse

Question


fsolve and fimplicit give different results
Hello. I know there are a lot of questions about nonlinear solver fsolve but I'd like to ask and simultaneously share my experi...

plus de 5 ans il y a | 1 réponse | 0

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réponse

Question


Creating arrayfun with two variables
Hello. I'd like to create cell array with results of a function S for variables and , which is defined in a code below. fun...

plus de 5 ans il y a | 1 réponse | 0

1

réponse

Question


Calculation of integrals and summation with an error "The following error occurred converting from gpuArray to double: Conversion to double from gpuArray is not possible"
Hello. I try to reduce the time for the performance of the following code using Parallel Computing Toolbox function z=tes...

plus de 5 ans il y a | 1 réponse | 0

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réponse

Question


Plot of the function after integration
Hello. I want to plot a complicated function. Unfortunately at the end I obtain just one point of the function and the empty gr...

plus de 5 ans il y a | 1 réponse | 0

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Question


How to avoid multiple integration of the function and speed up calculations?
Hello. I'm dealing with with the code, where I have to integrate complicated function S(q,k) over q. Then I have to make summat...

plus de 5 ans il y a | 1 réponse | 0

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Question


Different answers for the result of integration and summation
Hello. I'd like to get the result of this expression for k=1 and m=1 <</matlabcentral/answers/uploaded_files/124089/Expr1.jp...

presque 6 ans il y a | 1 réponse | 0

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réponse

Question


How to speed up calculations of integral and summation
Hello everybody Regarding to my previous <https://ch.mathworks.com/matlabcentral/answers/406219-error-using-sum-invalid-data-...

presque 6 ans il y a | 1 réponse | 0

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réponse

Question


Error using sum Invalid data type. First argument must be numeric or logical.
Hi everybody. I try to make integration over the variable q for the expression with inside integration and summation and find...

presque 6 ans il y a | 1 réponse | 0

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réponse

Question


plot function with parameters
Hello everybody. I'd like to plot the function y=y(x) which is defined by the expression <</matlabcentral/answers/uploaded_f...

presque 6 ans il y a | 1 réponse | 0

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réponse