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Note that certain combinations of these constants are not allowed
in the present implementation. In particular,
- -
- The computation of orientation ITWIST=1 is not
implemented for IEQUIB<0 (heteroclinic orbits),
IEQUIB=2 (saddle-node homoclinics),
IREV=1 (reversible systems), ISTART=3 (homotopy
method for starting), or if the equilibrium contains complex
eigenvalues in its linearization.
- -
- The homotopy method ISTART=3 is not fully implemented
for heteroclinic connections IEQUIB<0, saddle-node homoclinic
orbits IEQUIB=2 or reversible systems IREV=1.
- -
- Certain test functions are not valid for certain forms
of continuation
(see Section 20.6 below);
for example
PSI(13) and PSI(14) only make sense if
ITWIST=1 and PSI(15) and PSI(16) only apply
to IEQUIB=2.
Gabriel Lord
2007-11-19