**Next:**4.7
Grid & Element**Up:**4.6
Solving Methods**Previous:**4.6.1
Solver

##
4.6.2 Time Discretization

To solve time dependent problems AMIGOS
is equipped with the Backward Euler and the Cranck-Nicholson iteration
scheme combined with a temporal error estimation and timestep control.
If AMIGOS detects
a time dependence of a quantity it checks weather the last calculated time
step was accurate enough or if the last calculation has to be rejected
restarting the Newton iteration but now with a user defined `rejection-ratio'
times smaller time step. The time-estimation algorithm is used to adapt
the time-step in dependence of the calculated deviation of the chosen time
interpolation (linear or logarithmic).

**Next:**4.7
Grid & Element**Up:**4.6
Solving Methods**Previous:**4.6.1
Solver
*Mustafa Radi*

*1998-12-11*