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| Subject | ： Re: FIT features |
| Date | ： 2010/12/22(Wed) 14:33:42 |
| Contributor | ： Akio Morita |
> Is it possible to fix during FIT procedure not only the twiss parameters value but also their combinations? For example tunes difference NX-NY.
>
You can setup custum fitting function via
o FitValue[] function
o FitFunction symbol
For example,
FitFunction := {Twiss["NX", "$$$"] - (Twiss["NY", "$$$"] + 1)};
minimizes (Twiss["NX", "$$$"] - (Twiss["NY", "$$$"] + 1))^2.
> And I'll steel be unreally happy if the SOL element will become variable during matching (see post N777).
>
tweight problem reported in post N792 WOULD be fixed at src/tffsmatch.f revision 1.74(2010/03/24).