User subroutines. next up previous contents
Next: Creep (creep.f) Up: CalculiX CrunchiX USER'S MANUAL Previous: *VISCO   Contents

User subroutines.

Although the present software is protected by the GNU General Public License, and the user should always get the source code, it is sometimes more practical to get a nicely described user interface to plug in your own routines, instead of having to analyze the whole program. Therefore, for specific tasks well-defined interfaces are put at the disposal of the user. These interfaces are basically FORTRAN subroutines containing a subroutine header, a description of the input and output variables and declaration statements for these variables. The body of the routine has to be written by the user.


guido dhondt 2012-10-06