** Next:** Choosing the time step
** Up:** Introduction
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To make a full program several more things are needed:
- Initial conditions
- Boundary conditions
- Time step calculation
- Source term integration

Items 3 and 4 are general, 1 and 2 depend on the specific problem you
want to solve. Of course you will also need in- and output routines.

**Subsections**

Garrelt Mellema
2003-01-20