The commercial versions generally add features such as schematic capture (the ability to “draw” circuits using the computer’s mouse), graphical input and output of data, interactive analysis, analog-d...The commercial versions generally add features such as schematic capture (the ability to “draw” circuits using the computer’s mouse), graphical input and output of data, interactive analysis, analog-digital mixed signal analysis and large device libraries. It is easy to see that if the description of the circuit or the components within the circuit is not accurate, the simulation will not be accurate.
