9. Solving Integro-Differential Equations
An "integro-differential equation" is an equation that involves both integrals and derivatives of an unknown function.
Using the Laplace transform of integrals and derivatives, an integro-differential equation can be solved.
Similarly, it is easier with the Laplace transform method to solve simultaneous differential equations by transforming both equations and then solve the two equations in the s-domain and finally obtain the inverse to get the solution in the t-domain.
Example 1 (Integro-Differential Equation)
Solve the equation for the response i(t), given that
and i(0) = 0.
Example 2 (Simultaneous DEs)
Solve for x(t) and y(t), given that x(0) = 4, y(0) = 3, and:
The rectangular plot of the solution is an interesting curve...
While here is a polar plot:
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