Calculation of the gain-frequency characteritics of an audio amplifier using a digital computer

Electronic circuit designs are most commonly made by "analog" (or "breadboard") methods. This is particularly true in arriving at the desired gain-frequency response characteristics. The mathematical approach to circuit analysis has suffered from the distinct disadvantage of involving the solution of large systems of simultaneous equations with complex, frequency-dependent coefficients often requiring days to solve by hand calculations. The ability of digital computers to solve large systems of simultaneous equations at high speed and without mistakes allows the audio engineer to solve many problems faster by using classical methods than by use of the breadboard technique.