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Jennifer Yang


Last seen: 4年以上 前 |  2018 年からアクティブ

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Solving an integration problem at specific time points
Hello, I am interested in solving this equation below where I have specific time points that correlate with a gp value. I need ...

5年弱 前 | 1 件の回答 | 0

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Error using bvp4c: "Warning: Unable to meet the tolerance without using more than 5000 mesh points. The last mesh of 4921 points and the solution are available in the output argument."
Hello, I'm using bvp4c to solve for a reaction-diffusion equation. When I set the initial concentration to 100, I get this erro...

6年弱 前 | 1 件の回答 | 0

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質問


Plot u vs. t with PDEPE. "Index exceeds matrix dimensions."
Hello, I can't seem to figure out how to plot u (concentration) vs. t (time) at a specific x (distance). function simple...

約6年 前 | 0 件の回答 | 0

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Plot at t = 0, 0.001, 0.01, and 10 in one plot
Hello, I'm solving for a time dependent pde. I was wondering how do I plot multiple lines on the same plot at specific time p...

約6年 前 | 1 件の回答 | 0

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How to determine where plot/curve reaches 0?
Hello, I have a concentration vs distance plot and was wondering how can I determine where the concentration reaches 0 at max...

約6年 前 | 0 件の回答 | 0

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Error using pdepe - Spatial discretization has failed. Discretization supports only parabolic and elliptic equations, with flux term involving spatial derivative.
Hello, I'm using pdepe to solve for a reaction-diffusion equation. When I set the initial concentration to anything between ...

約6年 前 | 1 件の回答 | 0

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質問


Plot multiple lines on the same plot at specific time points
Hello, I'm solving for a time dependent pde. I was wondering how do I plot multiple lines on the same plot at specific time p...

約6年 前 | 0 件の回答 | 0

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Adding a known velocity (convection) term to reaction diffusion equation using bvp4c
I am trying to add a known velocity (10 m/s) to my steady state reaction diffusion equation although I'm a bit confused how to g...

約6年 前 | 0 件の回答 | 0

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How to plot parameters within bvp4c
Hello, I'm solving for a reaction diffusion equation. I followed examples on how to plot the solution of differential equatio...

約6年 前 | 0 件の回答 | 0

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質問


What does this code mean?
Hello, I'm still fairly new to MATLAB. I was looking through examples of how to plot my time dependent solution from t = 0, t...

約6年 前 | 1 件の回答 | 0

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bvp4c setup for second order ODE
<</matlabcentral/answers/uploaded_files/121925/Eqns.PNG>> Hello, I'm trying to solve for this second order ODE in steady stat...

約6年 前 | 1 件の回答 | 0

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Second order ODE - Error in using ODE45?
<</matlabcentral/answers/uploaded_files/121721/Eqns.PNG>> Hello, I'm trying to solve the second order differential equation (...

約6年 前 | 1 件の回答 | 0

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