Numerical solution of a differential equation with time dependent terms

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Discussion Overview

The discussion revolves around the numerical solution of a differential equation that includes time-dependent terms. Participants explore methodologies and software options for solving the equation, focusing on practical implementation and numerical techniques.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • One participant seeks practical ideas for software and methodology to solve a specific differential equation.
  • Another participant suggests calculating the solution time step by time step if all parameters are known, indicating that there are more precise integration methods available.
  • A follow-up question asks for clarification on how to perform the time step calculations, emphasizing that time is the independent variable.
  • There is a repeated inquiry about implementing the solution in software for numerical results.
  • A participant mentions various numerical techniques, specifically highlighting the Runge-Kutta method as a reasonable approach for achieving accuracy with manageable calculations.

Areas of Agreement / Disagreement

Participants generally agree on the need for a numerical approach to solve the differential equation, but there is no consensus on the specific methods or software to use, as different techniques are suggested without resolution.

Contextual Notes

The discussion does not specify the exact form of the differential equation or the parameters involved, which may affect the proposed methodologies. Additionally, the effectiveness of the suggested numerical techniques remains unverified within the conversation.

Who May Find This Useful

This discussion may be useful for individuals interested in numerical methods for differential equations, particularly those seeking practical software solutions and methodologies for time-dependent problems.

Carlos Criollo
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I am would like to solve this differential equation:

1.png


Where

upload_2014-10-10_14-43-52.png

upload_2014-10-10_14-44-16.png

http://ieeexplore.ieee.org.ezproxy.uniandes.edu.co:8080/ielx5/8/6493417/6409989/html/img/6409989-eqdisp-3-small.png
upload_2014-10-10_14-55-52.png


Could you give me some practical ideas about the required software and methodology? Thank you very much
 
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If all the parameters are known, did you try to just calculate it time steps by time step? Did it work?
There are more precise integration methods, but that is something you can have a look at afterwards.
 
Yes, all the parameters are known, but how I can calculate the time step by time step?
 
Carlos Criollo said:
Yes, all the parameters are known, but how I can calculate the time step by time step?
Time is the independent variable. You start your calculations at t = 0, increment t, rinse and repeat.
 
And how I could implement it in software?, I need a numerical solution of this equations.
 

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