2 V4_02  25/07/94
 The following version numbers apply to this version of Mn_Fit:

 Mn_Fit  4.02/19
 Mn_Util 1.07/14
 MINUIT  1.00/13
 TYPSCN  1.02/06
 L3_DSP  1.02/02
 DBASE   1.04/04

 This section lists the changes that have been made since
 Mn_Fit version 4.01/21.

 This release has been tested with the 93d and 94a releases of the CERN
 libraries.

 +++ Known Bugs or Problems:
 ___________________________


 `DRAW' commands with the mouse on only work in CM.

 The `IGTABL' scale is not always drawn on the right axes, or exactly
 in the right place if rotations of more than 90 degrees are used.

 `NTUPLE MERGE' may fill the first files entries with 0 if you get an
 RZOUT not authorized message.

 Fetching of variable bin width histograms is wrong.

 Standard Chebyshev doe not give reproducible parameters.

 Naglib smoothing and spline fitting is not available on Apollo DN10000's.


 +++ New Features:
 _________________


 The `FIT' command syntax has been improved to allow immediate
 specification of the fit type. It is also possible to likelihood fit
 taking into account the limited function statistics.

 A new function type `Smoothed Histogram' has been added.
 It has 2 parameters: the `NORMALIZATION' and the `OFFSET' and can also
 have multiply the ordinate by a `SCALE' factor.

 A directory name can be specified, which is then used for all files
 if you do not give a directory specification. However this means that
 filename completion does not work for such files. The command is
 `WDIR' or `SET WORKING_DIR'.

 Points with no entries and zero error only have the error replaced by
 1 when doing operations involving more than 1 histogram
 (`ADD, SUBTRACT, MULTIPLY, DIVIDE, EFFICIENCY, AVERAGE'), provided
 that `ERR_ZERO' is `.TRUE.'.

 New spline fitting and smoothing routines have been added. HBOOK
 routines HSMOOF and HSPLI1 can be called (`SMOOTH/HBOOK' and
 `SPLINE/HBOOK' commands). A smoothing routine from Topdrawer is
 available (`SMOOTH/TOP') and Naglib spline fitting and smoothing
 (`SPLINE/NAG' and `SMOOTH/NAG') are available.

 Smooth curves through a series of points can be drawn using the
 command `PLOT/SMOOTH'.

 The interface to `IGTABL' has been improved substantially. All
 options are now available and axis ticks, scales and labels are
 controlled in the normal Mn_Fit way. The positioning of the scale in
 3-d plots (`LEGO' and `SURFACE') still needs some improvement and the
 scale and label are sometimes drawn on the wrong axis if you rotate
 by more than 90 degrees. All options also work with windows.

 A global title is available (`SET TITLE GLOBAL title').

 Interface to ECAL database and a new display for the L3 BGO added.

 +++ New Commands:
 _________________


 FUN ADD SMOOTH          Smoothed histogram used as a function.
 PLOT/SMOOTH             Plots a histogram as a smooth curve.
 PLOT/EMPTY              Plots an empty histogram without giving an error.
 SET BIN                 Specfies an offset or scale factor for histograms.
 WDIRECTORY              Sets the working directory.
 SET WORKING_DIR         Sets the workinh directory.
 SET FUNCTION POINTS     Specifies the number of points to use when
                         drawing a function.
 SET FUNCTION INTEGRATE  Specifies the number of intervals to use when
                         integrating a function.
 SET FUNCTION STEP       Specifies the step size to use when
                         differentiating a function.
 SET COLOUR ON|OFF       Turns on or off use of colour.
 SET TITLE GLOBAL        Adds a global title to each picture.
 DATABASE DBN_SNAP       Database snapshot without a picture.
 DATABASE DBN_HISTORY    Database history without a picture.

 +++ Modified Commands:
 ______________________


 FIT               Qualifiers added and new options.
 HIST ERROR        New mode (-1) to delete errors, rather than just
                   setting to 0 (mode 0).
 SPLINE            HBOOK and Naglib spline fitting added.
 SMOOTH            HBOOK, Naglib and Topdraw smoothing added.
 IGTABLE           Interface much improved - HELP added.
 SET HIGZ          Interface much improved.
 DRAW              New option for whether items should be at front or back.
 DB_SNAP           Differences between database entries can be plotted.
 COVARIANCE        The CERN version shows the covariance matrix.
 DATABASE DB_SNAP  Options to to differences between entries.

 +++ Improvements and Bug Fixes:
 _______________________________


 You can now delete a list of functions.

 `DAT_STORE' can now store Ntuples.

 `HISTOGRAM ERROR id -1' deletes the errors on a histogram, so
 `DAT_STORE' will only store `X,Y' values.

 The spurious lines in `DISPLAY' when using the `INCLUDE' command are
 now fixed.

 `FIT_INFO' and `DISPLAY' sometimes gave floating point errors on the
  hp. This is fixed.

 Wrong frames when making lego or surface plots should be fixed.

 After a `HARDCOPY' command an xterm did not switch back from the
 Tektronix to the VT100 window properly.

 The return status from `lib$spawn' on VMS is printed.

 An attempt is made to unlock locked histogram files if they cannot
 be opened properly.

 `mn_fit filename' did not work on Unix machines.

 `INQUIRE' statements inside ``Here Documents'' caused problems with
 the readline version.

 The automatic switching between Ntuples on disk did not work
 properly.

 The `HESSE' command shows the covariance matrix if the `PRINTOUT'
 level is 0 or greater.

 There was no protection on defining more than the maximum number of
 cuts.

 If you aborted a macro inside an `IF' block things were not reset
 properly.

 If you try to draw more plots than the buffer, you get a warning
 message, but are not asked for a <CR>, nor is the window number
 reset.

 The macro name is also given when the file is closed.

 The `PRECISION' command did not show you the current precision properly.

 Protection added to histogram operations if I run out of space.

 ALPHAVMS, ALPHAOSF and ALPHA added as flags.

 The C. Rippich version of MINUIT should also work on HP's.
