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##

5.1.6 Resumé: Conservative-hyperbolic DE

- **Use Lax-Wendroff!**

- **If not, use at least Lax**, but see that in addition to CFL

- **Forget FTCS and Leapfrog!**

To test the various methods, let us apply them to the 1D wave
equation. When altering the propagation velocity , the time step
, or the grid width , keep in mind the operation
regions of the different algorithms:

FTCS - unstable

LAX, LEAPFROG, LAX-WENDROFF - CFL condition

* Franz J. Vesely Oct 2005*

See also: "Computational Physics - An Introduction," Kluwer-Plenum 2001