Compare the simulation and analytical methods.
Answers
I will try to define the terms analytic and simulation within the scope of a specific example. Assume that we have an electronic circuit as a single transistor amplifier circuit and we want to determine its dc node voltages and branch currents knowing the circuit diagram and the electrical properties of the circuit elements.
This problem can be solved analytically by using algebraic equations and this can be accomplished only by linearizing the dc characteristics of the transistor as we all know.
This problem can be solved also by simulating the circuit into a computer where one develops a program to describe the circuit into the computer and model elements by a mathematical expressions describing their real behavior as precise as possible. Then a numerical solver is developed which is able solve the sytem of equations of the circuit. One can study the effect of the circus parameters on its performance
The third method is to go to the laboratory and implement the circuit and measure it voltages and currents. One can also study experimentally the effect of the circuit parameters on the performance of the circuit.
All these methods are analysis method, the first is analytic. the second is numerical and the third is experimental.
The computer program can be developed such that it simulates the laboratory. Think on PSPICE and EWP. These programs act a if you you have a circuit laboratory. They are virtual circuit laboratory. You run experiments without going to the laboratory. This is simulation.
So, this is my understanding for analytic, analysis and simulation.
Thank you