Symbolic Analysis Program for Windows (SAPWIN) is a proprietary symbolic circuit simulator written in C++ for the Microsoft Windows operating systems Vista, 7.0 and 8.1.
The SAPWIN package also includes tools for schematic capture and graphic post-processing.
SAPWIN is available free from its homepage at the University of Florence website.
Symbolic Analysis Program for Electric Circuits - Next Generation (SapecNG) is the open-source software relative of SAPWIN, written in Boost C++ libraries and designed to be cross-platform.
QSapecNG is a Qt-based graphical user interface (GUI) and schematic capture program for SAPEC-NG.