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Yuriy Yerin


Last seen: 4ヶ月 前 |  2018 年からアクティブ

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質問


The appearance of infinity in the problem with finding the minimum of a function
I want to find the so-called "efficiency" of a function, defined as the ratio of the difference of the absolute values of the ma...

7ヶ月 前 | 2 件の回答 | 0

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質問


Error with the animation of the surface plot
Hello I want to perform a surface animation, but I constantly run into an error Error using surf Data dimensions must agree....

7ヶ月 前 | 2 件の回答 | 0

2

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質問


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

1年以上 前 | 0 件の回答 | 0

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質問


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 ...

2年以上 前 | 0 件の回答 | 0

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質問


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...

3年弱 前 | 0 件の回答 | 0

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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...

3年以上 前 | 0

質問


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...

3年以上 前 | 2 件の回答 | 0

2

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質問


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...

4年以上 前 | 0 件の回答 | 0

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質問


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 ...

4年以上 前 | 1 件の回答 | 0

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質問


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...

6年弱 前 | 0 件の回答 | 0

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質問


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...

約6年 前 | 1 件の回答 | 0

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質問


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...

約6年 前 | 1 件の回答 | 0

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質問


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...

約6年 前 | 0 件の回答 | 0

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質問


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...

6年以上 前 | 0 件の回答 | 0

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質問


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...

6年以上 前 | 0 件の回答 | 0

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質問


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-...

6年以上 前 | 1 件の回答 | 0

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質問


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...

6年以上 前 | 1 件の回答 | 0

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質問


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...

6年以上 前 | 0 件の回答 | 0

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