Note that the toplevel link is to a page full of simple techniques for enhancing base Tcl with C, Fortran, Lua etc. code, suggesting that Tcl offers the shortes

Note that the toplevel link is to a page full of simple techniques for enhancing base Tcl with C, Fortran, Lua etc. code, suggesting that Tcl offers the shortest path from dynamic language to serious number crunching power when it is needed.