# Rahul

Last seen: 4日 前 2023 年からアクティブ

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#### Feeds

How to solve it for a scalar output?
Hi, I'm trying to find the electron current using the relation J=sigma[E+uxB] for which my code gives an error Unable to pe...

6日 前 | 0 件の回答 | 0

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How to introduce fluctuation with respect to time in my code?
Hi, I want to introduce in my code a small fluctuation with respect to time for density and temperature. Can anyone tell me ...

8日 前 | 1 件の回答 | 0

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Is the oscillation in the picture a boundary condition problem?
Hi, I have an equation which is as follows When I solve this equation using the pdepe it shows an oscillation pattern at the...

27日 前 | 0 件の回答 | 0

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Issue regarding a data plot
Hi Divyajyoti, I tried to do the correction as follows percentage_difference_gI(i) = abs(Normalized_intensity_gradient(end,i+1...

Issue regarding a data plot
Hi, I have a data as attached herewith. The blue plot represents the gradient while the orange plot represents the percentage ...

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How to determine the minimum point of a plot?
Hi, I have a plot as attached herewith in which the value of the point as shown by arrow mark is to be determined and compared ...

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Writing a code to determine the gradient change in a profile
Hi, I'm trying to write a code which can determine the gradient change in a given profile. However the code is unable to determ...

3ヶ月 前 | 1 件の回答 | 0

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Regarding choosing correct boundary condition
Hi, I have a condition where at the left boundary and the right boundary I need the flux to be non-zero. Thus, the equations ...

3ヶ月 前 | 1 件の回答 | 0

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Issue with contour plot due to different size
Hello, As cited above I want to have a contour plot, but the problem is the size of X and Z are different. as given below: x...

5ヶ月 前 | 1 件の回答 | 2

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How to import multiple .mat files to the workspace?
Hello, I have 72 no. of .mat files at a location (as in the path in code) which is not possible to import manually. Hence I tr...

5ヶ月 前 | 0 件の回答 | 0

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How to import multiple .mat files to workspace?
Hi, As cited above, I'm trying to import multiple .mat files (total 72 no. of .mat files) which are at the location as in the c...

5ヶ月 前 | 2 件の回答 | 0

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Issue with integration using trapz
Hello, I'm trying to implement integration using trapz. But the resultant quantity after integration is negligibly small and do...

5ヶ月 前 | 0 件の回答 | 0

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Error while extracting MIN and MAX values from a given data
Hi, While trying to extract the min and max values from a given data, the code is unable to extract correctly for data.variable...

5ヶ月 前 | 1 件の回答 | 0

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Error in determining MIN and MAX values from a given vector
Hi, From the attached data my intention is to determine the min and max values for pressure. Thus in data.variable.pressure th...

5ヶ月 前 | 0 件の回答 | 0

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Error during contour plot
Hi, While trying to generate a contour plot, I'm getting an error which is thown as "The size of X must match the size of Z o...

5ヶ月 前 | 1 件の回答 | 0

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Why does it give error in spectrogram plotting?
Hello, I'm getting an error while generating spectrogram. It shows "Dot indexing is not supported for variables of this type....

5ヶ月 前 | 1 件の回答 | 0

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How to fix the error in pdepe?
Hi, In the attached code, it throws an error which says Error using ^ Incorrect dimensions for raising a matrix to a power....

7ヶ月 前 | 1 件の回答 | 0

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How to fix the error in integration?
Hi, While performing an integration using trapz it throws an error "Array indices must be positive integers or logical values."...

7ヶ月 前 | 1 件の回答 | 0

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Why is the error in the attached code?
Hi, I'm getting an error in the attached code which I'm unable to decode. Hence need your advice in the same. Attached herew...

7ヶ月 前 | 1 件の回答 | 0

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How to introduce 2nd order derivative term in pdepe?
Hi, Refer to the subject cited above, I'm not sure if it is possible or not to introduce second order derivative term in pdepe?...

8ヶ月 前 | 1 件の回答 | 0

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Issue with solving pdepe
Hi, plz find attached the set of equations Also i found one mistake in the code that I corrected in the code below. However, ...

9ヶ月 前 | 0

Issue with solving pdepe
Hello, Wishing you all a Merry Christmas I'm trying to solve a pdepe consisting of 6 equations which consists pressure, densit...

9ヶ月 前 | 1 件の回答 | 0

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Why am I receiving the error?
Hello, I'm receiving an error in my code when run. It shows Error using pdepe Unexpected output of PDEFUN. For this problem P...

9ヶ月 前 | 1 件の回答 | 0

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How to retrieve data from a Excel sheet saved at a particular location in pc?
Hello, I want to retrieve data from an excel sheet stored at a particular location in the pc, the path of that particular file ...

10ヶ月 前 | 1 件の回答 | 0

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How to code a ramp function?
Hi, I tried to code a ramp function as attached herewith. But getting an error "Operands to the logical AND (&&) and OR (||)...

10ヶ月 前 | 1 件の回答 | 0

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How to plot frequency spectrum in log-log scale?
Hi Dyuman Joshi, Regarding the the above code for generating frequency spectrum, I'd like to know if it is possible to generat...

11ヶ月 前 | 0

How to plot power law frequency spectrum?
Hello friends, I want to plot power law frequency spectrum for the turbulence intensity data as attached. So far I understand...

11ヶ月 前 | 1 件の回答 | 0

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Why do I have an error in pdepe solving?
Hi all, I'm having an error while solving a pdepe. It gives me the error "Index exceeds the number of array elements. Index...

11ヶ月 前 | 1 件の回答 | 1

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How to plot frequency spectrum in log-log scale?
Hello, I'm trying to plot a frequency spectrum for a given set of data with log scales in both axes which should scale as 10^0,...

12ヶ月 前 | 2 件の回答 | 0

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How to zoom in to a particular point of an image?
Hi, I'm trying to zoom in to a particular point of an image and not the full image. In the above figure, I want to zoom i...