While we're waiting for someone to synthesize a coherent essay
on the topic above, here's valuable reading to warm us all up
to the topic:

   * [Combining Fortran and Tcl in one program] - [Arjen Markus] promises to make this page!
   * [Critcl]
   * [Expect for Windows]--or maybe just [Expect]
   * [Fortran]
   * [Keep a GUI alive during a long calculation] [[advanced topic]]
   * [Managing Fortran programs]
   * [exec] and related essays

   * [[tutorials]]
   * [[... much more ...]]












[[Sort the order of the stuff above.]]


----
Why privilege FORTRAN?  That is, why wouldn't this have been a better
page, titled "... on interacting with applications written in other languages ..."?
language?  Does FORTRAN do something weird with user input?  Or is
what is really being requested a tutorial on how to write Tcl/tk
applications that interact with external programs that request character
based user interaction?]]