Exploring Exact Differential Equations through MATLAB

BINIL THOMAS-SEBASTIAN, ,
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Initial Publication Date: October 14, 2024

Summary

This activity introduces students to solve exact differential equations and plot solutions for different initial conditions using a MATLAB Live Script. At end of this activity students will able to verify whether a differential equation is exact or not and get the analytic solution of an exact differential equation and plot the solution for different initial conditions. Plotting the graphs help students to understand the solution of differential equations are family of functions.

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Learning Goals

At the conclusion of this activity, the student will:

  • Understand the exact differential equations.
  • Understand how to solve the exact differential equations
  • Understand the graphical representation of solutions of exact differential equations

The student will gain the following MATLAB skills:

  • How to check if a differential equation is exact or not
  • Able to display the result whether the given differential equation is exact or not
  • Plot using fimplicit
  • Add legends to their diagram

Context for Use

In this lesson, students use MATLAB to find the solution of Exact differential equations and interact with solutions with different initial conditions. This activity is developed as a new initiative to introduce MATLAB for Engineering mathematics students who wish to use MATLAB to solve differential equations.

Prior to working on this activity, students complete an introduction to MATLAB and learn the following: layout of MATLAB, accessing MATLAB documentation, using MATLAB drive, setting directories and paths, performing arithmetic in the command line, creating arrays and variables, using a Livescript, and basic plotting in their MATLAB module. Students also introduced different types of differential equations and the meaning of solution of differential equations. They are also able to solve an exact differential equation analytically.
They then immediately start working on this activity.

Description and Teaching Materials


Studentshandout for exact differential equations (Microsoft Word 2007 (.docx) 79kB Oct6 24)



Teaching Notes and Tips


Assessment

References and Resources