bar graphs, pie charts, 3D-color plots, surfaces, contours and maps." For DOS, Linux, Mac OS X, OpenVMS, UNIX, Windows. "Free for non-commercial use" (but not free ). SansGUI : Requires Microsoft Visual C/C++ 6.0+ or Compaq Visual Fortran 6.1+. For Windows. Winteracter : "The Fortran 9x GUI Toolset." For Linux, Mac