15.3 OTHER RESPONSES
When we have a system that doesn't have the form of a first or second order system, or our input is other than a step function, we need to calculate the response.
The response of the systems is calculated by solving the differential equations.
To solve the equations we could use the Runge-Kutta technique, or solve the differential equations.
15.3.1 Solving Differential Equations
Please refer to the relevant section in the math handbook.
15.3.2 Complex Numbers