Results may be assigned to a permanent database or printed to the screen.
All expressions operate on self-describing data structures.
Graphics may be done on most UNIX workstations using the X11 window system and on some interactive terminals. X11 support includes graphics devices for Motif graphical user interfaces. Graphics can be printed on PostScript or LaserJet printers, or HP-GL plotters. The language can be extended with user-written functions, and dynamically linked subroutines in C and Fortran. S-Plus requires he X11 window system to work fully.