| FLAG | default | effect if TRUE |
| ECHO | true | echoes the input on the standard output file |
| WARN | true | issues warning statements |
| INFO | true | issues information statements |
| DEBUG | false | issues debugging information |
| ECHOMACRO | false | issues macro expansion printout for debugging |
| VERBOSE | false | issues additional printout in makethin |
| TRACE | false | prints the system time after each command |
| VERIFY | false | issues a warning if an undefined variable is used |
| TELL | false | prints the current value of all options |
| RESET | false | resets all options to their defaults |
| NO_FATAL_STOP | false | Prevents madx from stopping in case of a fatal error |
| Use at your own risk ! | ||
| RBARC | true | converts the RBEND straight length into the arc length |
| THIN_FOC | true | enables the 1/(rho**2) focusing of thin dipoles |
| BBORBIT | false | the closed orbit is modified by beam-beam kicks |
| SYMPL | false | all element matrices are symplectified in Twiss |
| TWISS_PRINT | true | controls whether the twiss command produces output |
| THREADER | false | enables the threader for closed orbit finding in Twiss |
| (see Twiss module) |