CLEAR terminates an interactive session, and restarts TSP.
CLEAR ;
Usage
CLEAR is an alternative to QUIT. Use CLEAR when you want to immediately restart TSP without saving any of your data or commands from the current session. Use QUIT when you want to exit completely from TSP. CLEAR would be preferred if you have just been experimenting with some commands, or if you have created some variables in error, and you want to start with a clean slate.