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       ff3d - FreeFEM3D is a general PDE solver


       ff3d [-v|-h|-H]
       ff3d [-nw][-V verbosity_level][filename]


       This manual page documents, briefly, the ff3d command.

       FreeFEM3D  (aka  ff3d) is a 3D solver of partial differential equations
       (PDE).  It is a member of the familly  of  the  freefem  programs  (see

       ff3d, as well as its cousins, is a PDE solver driven by a user-friendly
       language. It solves many kind of problems such  as  elasticity,  fluids
       (Stokes  and  Navier-Stokes)  and a lot more. The user has to enter the
       equation associated with the problem, giving either the PDE  in  strong
       formulation or weak (variational) formulation.

       ff3d  can  use  either  the  Finite  Elements  method  (the mesh of the
       geometry being provided by  the  user)  or  a  Fictitious  Domain  like
       approach  where  the  geometry  is  described  using Constructive Solid
       Geometry (CSG). This description is done using the POV-Ray language but
       others such as VRML could be added.

       The processing of the results is left to the user.  One can use various
       graphic tools: output in the MEdit mesh format or  VTK  are  supported.
       The implementation of a VTK base visualization module is underway.

       The  goal  of  ff3d  is  to provide a good teaching tool and a research
       toolbox (the code is written in C++ and its design  is  such  that  new
       methods can be easily implemented).


       -v, --version
              Output  version of program and exit.  The default mode is ‘v’, a
              simple version.  The ‘c’ mode will print  copyright  information
              and ‘n’ will print the full copyright notice.

       -h, --help
              Display usage information and exit.

       -H, --more-help
              Display extended usage information and Licence and exit.

       -V verbosity_level, --verbosity verbosity_level
              Set level of verbosity.  The default number for this option is:

              Changes  ff3d  level  of verbosity. Bigger values will make ff3d
              give more and more informations.


       Jean-Baptiste Apoung Kamga
       Stephane Del Pino
       Olivier Pironneau
       Driss Yakoubi


       Cecile Dobrzynski
       Pascal Have
       Christophe Prud’homme


       Please send bug reports to:
       or better use the  Bug Tracking System:


       This program is free software; you can redistribute it and/or modify it
       under  the  terms of the GNU General Public License as published by the
       Free Software Foundation; either version 2, or  (at  your  option)  any
       later version.
       see for details.