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GnuCap – is another open source project, developed as a general purpose circuit simulator. As its a collaborative project you can suggest improvement of the circuit simulator and be a part of the development team. Ngspice is a part of gEDA project which is growing every day with suggestions from its users, development from its contributors, fixing bugs and approaching perfection. NgSpice is developed by a collective effort from its users and its code is based on 3 open source software packages:- known as:- Spice3f5, Cider and Xspice. NgSpice – one of the popular and widely used free, open source circuit simulator from Sourceforge. Free and Open source circuit simulator software list:.
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