Circuit simulation and modeling

The column “ircuit Simulation and Modeling”was introduced in the January 1987 issue. Our original goals were to present new developments in simulators and models for VLSI designs as well as readers´ comments and questions. Moreover, corrections, tricks, or new applications were also being solicited. Since then, we have received excellent responses and contributions. However, I still would like to take this opportunity to strongly encourage people to communicate and participate actively.