S-PLUS has an inbuilt help facility similar to the man facility of UNIX. To get more information on any specific named function, for example solve the command is
help(solve)
An alternative is
?solve
For a feature specified by special characters, the argument must be enclosed in double quotes, making it a `character string':
help("[[")
A much more comprehensive help facility is available with the X-windows version of S-PLUS The command
help.start(gui="motif")
causes a ``help window'' to appear (with the ``motif'' graphical user interface). It is at this point possible to select items interactively from a series of menus, and the selection process again causes other windows to appear with the help information. This may be either scanned at the screen and dismissed, or sent to a printer for hardcopy, or both.