ngspice src dd3b095a81a515e3953e27c714a248fb0f5ece26f64cd30cf67f43341519eb97 Mixed Mode - Mixed Level Circuit Simulator Based On Berkley's spice3f5 Ngspice is a mixed-level/mixed-signal circuit simulator. Its code is based on three open source software packages: Spice3f5, Cider1b1 and Xspice. It is the open source successor of these venerable packages. Many, many modifications, bug fixes and improvements have been added to the code, yielding a stable and reliable simulator. Therefore, besides being used as a standalone simulator, Ngspice has been incorporated into many projects, see our simulation environments page. uro <uro@urogaming.co.uk> https://ngspice.sourceforge.net/index.html