This video explains how to make sense of the natural response of a series RLC circuit. It shows how the general solution can be calculated and simulated using Mathematica, PySpice (Python) and LTSPICE. It has the following chapters: (00:00) [1] Introduction (01:59) [2] Natural Response Parameters (06:41) [3] Natural vs. Step Response (07:42) [4] Laplace Transform (09:51) [5] Mathematica Demo (12:04) [6] LTSPICE demo (12:51) [7] PySpice demo The Python code and Mathematica code are available in the comments section. [14/6/2023] Python code modified to also plot the simulated current in the series RLC circuit.