SV is running the incompatible timesharing system (ITS) on a KLH10 -- an emulated KS10 written in C and being executed by an AMD P6-600 running FreeBSD.
Windows applications or source code for various numerical algorithms, with emphasis on polynomial root finding. Some algorithms can be used via a web interface.
Web-based simulator of the hp15c calculator. Enhanced version with stack display. Note that contrary to emulators such as nonpareil, this simulator does not produce the same results as the real hp15c.