Binary package “tclx8.4-doc” in ubuntu precise

Extended Tcl (TclX) - manpages

 Extended Tcl (TclX), is a set of extensions to Tcl, the Tool Command
 Language invented by Dr. John Ousterhout. Tcl is a powerful, yet simple
 embeddable programming language. Extended Tcl is oriented towards system
 programming tasks and large application development.
 .
 TclX provides additional interfaces to the operating system, and adds many
 new programming constructs, text manipulation tools, and debugging tools.
 .
 This package includes the TclX man pages.