Elettrolinux

Based on three open source software packages; Spice3f5 the most famous and used electronic circuit simulator, Cider a mixed-level simulator that already includes Spice3f5 and adds a device simulator to it and Xspice, an extension to Spice3 that provides code modeling support and simulation of digital components through an embedded event driven algorithm. Ngspice is a part of gEDA project but it is distributed separately from mainstream gEDA applications. Ngspice is now one of most versatile spice implementation as it can deal with a very large set of netlists functionalities. It implements various classes of analysis:

Ngspice implements the usual circuits elements, like resistors, capacitors, inductors (single or mutual), transmission lines and a growing number of semiconductor devices like diodes, bipolar transistors, mosfets (both bulk and SOI), mesfets, jfet and HFET and EKV model but, this model, cannot be distributed with the package since its license does not allow to redistribute EKV source code. The NgSpice license is the BSD license.