petsc-3.7.3 2016-07-24
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# TSEIMEX

ODE solver using extrapolated IMEX schemes These methods are intended for problems with well-separated time scales, especially when a slow scale is strongly nonlinear such that it is expensive to solve with a fully implicit method. The user should provide the stiff part of the equation using TSSetIFunction() and the non-stiff part with TSSetRHSFunction().

### Notes

The default is a 3-stage scheme, it can be changed with TSEIMEXSetMaxRows() or -ts_eimex_max_rows

This method currently only works with ODE, for which the stiff part G(t,X,Xdot) has the form Xdot + Ghat(t,X).

### See Also

TSCreate(), TS

Level:beginner
Location: src/ts/impls/eimex/eimex.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages