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Yuriy Yerin


Last seen: 7 days 前 |  自 2018 起处于活动状态

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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...

2 months 前 | 2 个回答 | 0

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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....

3 months 前 | 2 个回答 | 0

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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...

1 year 前 | 0 个回答 | 0

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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 years 前 | 0 个回答 | 0

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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...

2 years 前 | 0 个回答 | 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 years 前 | 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...

3 years 前 | 2 个回答 | 0

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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 years 前 | 0 个回答 | 0

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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 years 前 | 1 个回答 | 0

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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...

5 years 前 | 0 个回答 | 0

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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...

5 years 前 | 1 个回答 | 0

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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...

5 years 前 | 1 个回答 | 0

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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...

6 years 前 | 0 个回答 | 0

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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 years 前 | 0 个回答 | 0

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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 years 前 | 0 个回答 | 0

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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 years 前 | 1 个回答 | 0

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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 years 前 | 1 个回答 | 0

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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 years 前 | 0 个回答 | 0

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