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.