1 Minuit

  To get a list of the MINUIT commands look at Menu.
  The source for this HELP is in the file
  `MN_FIT_HELP:MINUIT_HELP.FIL' (VMS) or
  `$MN_FIT/help/minuit_help.fil' (Unix).

  There are 2 versions of the MINUIT package interfaced to Mn_Fit. The
  default is the CERN library MINUIT. The previous version was
  based on a much older version of MINUIT and was extensively modified
  by Chris Rippich. To get this old version, which was the one used in
  all versions of Mn_Fit up to 3.00, you have to link it at your
  institute and run Mn_Fit with the option `-c' (short for
  `-cgr_minuit' and assuming this version has been made).

  In both versions a number of new  commands have been added to give you a
  graphical display of  the fit results and to  control which parts of the
  plots are being fit.

  All  MINUIT   commands  have  the   standard  syntax,  except  `MIGRAD',
  `SIMPLEX' and `MINOS'  where the maximum number  of calls is not part of
  the command, but can be set using  the `MAX_CALLS' command. This command
  used to be called `CALLS' (but this is too close to the `CALL_COMIS' and
  `CALL_FCN' commands). In the CERN version the commands `MATOUT' and
  `COVARIANCE' both show the covariance matrix.

  The extra MINUIT commands which have been added are:
  MODIFY, DISPLAY, EXCLUDE, INCLUDE, NO_EXCLUDE, NO_INCLUDE, DUMP,
  ITERATIONS, MAX_CALLS, PRECISION, FLOAT, INFO, FIT_INFO, BACK_SUB,
  CHI_PLOT, PROB_PLOT, FCN_DRAW, FCN_PLOT, MNCONTOUR, CONSTRAIN,
  UNCONSTRAIN.

  In addition there are a few commands in the CERN version which are
  not available in the C. Rippich version:
  SCAN, STRATEGY, RELEASE.

  In the CERN version of MINUIT you can give any standard MINUIT command
  with the standard syntax by prefixing the with `MINUIT'.
  e.g. `MINUIT SHOW COV'.

  Note that in all MINUIT commands a number can passed as a register,
  parameter etc. (see HELP Numbers for the syntax).

  The default printout level when you startup MINUIT is 0. This gives
  quite a lot of information about what is going on. If you are doing
  repetitive fitting I recommend reducing the printout level to -1
  (command `PRINTOUT -1' AFTER THE `FIT' command).

2 MINUIT
  Syntax: MINUIT minuit_command

  Direct interface to `MINUIT' commands. Only works with the CERN
  version of `MINUIT'.

