2 V4_04  12/06/96
 The following version numbers apply to this version of Mn_Fit:

 Mn_Fit      4.04/15
 Mn_Util     1.09/24
 TYPSCN      1.02/12
 CGR_MINUIT  1.00/15
 DBASE       1.05/04
 L3_DSP      1.02/14

 This section lists the changes that have been made since
 Mn_Fit version 4.03/49.

 This release has been tested with the 95a release of the
 CERN libraries. It will only work with versions 94b or later.


 +++ 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.


 +++ New Features:
 _________________


 Plotting with a date or time as axis labels is now implemented.

 New functions for expressions - DATE, TIME, TIME_MIN, DATE_TIME and
 DATE_MIN. These are mainly to be used for plots vs date or time and
 can be used to convert dates in the form YYMMDD etc. See HELP Time
 and HELP Expressions for more details.

 New help topics on time and vectors added.

 You can now `DRAW' in plot coordinates, even if you have not plotted
 anything! To do this you must set the x and y limits. See HELP DRAW
 for more details.

 The functions which evaluate functions at a particular point, FPOS,
 FNEG, etc. have been tested and now work properly.
 See HELP Expressions for more details.

 A cut can have an expression on both sides of the condition.

 `IF' statements allow arithmetical expressions.

 Projections of 1-D histograms now work. This is useful if you want to
 calculate an expression of the x-axis variable, e.g. cos(x).

 2-D histogram plotting has many new options easily available and
 documented.  All IGTABLE options are now built into Mn_Fit. The
 command `2DIM' can be used as a simple interface, or the old method
 using `SET IGTABLE' followed by `IGTABLE' also works.  `LEGO' and
 `SURFACE' plots, including `IGTABLE', work properly with log scales.

 A list of directory names, similar to the Unix PATH, can now be given
 using the `SET PATH' command. These directories are used when trying
 to open existing files.

 A footer can be added to a picture, either with default text that
 gives the date and time that the plot was made, or with user text.

 The key for symbols 5->8 now works correctly and the line segment
 size can also be set. Hatched histogram symbols are also available.

 The automatic rescaling of text sizes when windowing, the dropping
 of the last scale value when windowing and in lego plots can now be
 controlled. See HELP SET AUTOSWITCH and HELP SET AUTOTRIM for more
 details.

 You can plot the chi**2 vs. a variable even if you are doing a
 likelihood fit using the `CHI_PLOT' command. Otherwise the command is
 the same as `FCN_PLOT'.

 The `COPY' and `RENAME' commands copy the associated HBOOK histogram,
 only if it is not an Nutple.

 The `HELP' and `HISTOGRAM|NTUPLE DUMP' commands now invoke a pager by
 default. This means the help will not scroll off your screen.
 See HELP SET PAGER for more details on how to control the paging.

 New options have been added to the ECAL display. It is now possible
 to draw single boxes, rescale the picture easily, overlay displays
 and make a display directly from an Ntuples.
 See HELP SET PARAMETER ECAL for more details.


 +++ New Commands:
 _________________


 HISTOGRAM 2DIM         2-D histogram plotting using IGTABL.
 2DIM                   2-D histogram plotting using IGTABL.
 CHI_PLOT               Plot the chi**2 vs. a variable.
 SET IGTABLE            Alias/replacement for SET HIGZ TABLE.
 SET FOOTER             Turns on or off footer and user text.
 SET FSIZE              Change the text size for the footer.
 SET AUTOSCALE          Turns on or off the auotmatic resclaing of
                        text sizes when windowing.
 SET AUTOTRIM           Turns on or off the automatic dropping of the
                        last scale value when windowing or in lego plots.
 SET COLOR              Alias for SET COLOUR for Americans!
 SET PAGER              Sets the paging command used by `HELP' and `DUMP'.
 SET PATH               Sets list of directories used in file search..
 SHOW FRAME             Alias for `SHOW SCALE'.
 SHOW LIMIT             Alias for `SHOW SCALE'.
 SHOW MODE              Alias for `SHOW SCALE'.
 SIGN                   Now allowed in expressions.


 +++ Modified Commands:
 ______________________


 LEGO                  Qualifiers allowed for IGTABL options.
 SURFACE               Qualifiers allowed for IGTABL options.
 KEY                   Hatched histogram symbols now possible.
 KEY                   Line segment size and the text colour can now be set.
 DEPOSIT               Date/time functions added.
 SET HIGZ TABLE        Some options renamed and better prompts added.
 SET MODE              Date and time modes added.
 SET PARAMETER ECAL    New options and mode for L3 ECAL display.
 FCN_DRAW              The parameter name or number can now be given
 FCN_PLOT              The parameter name or number can now be given
 PROB_PLOT             The parameter name or number can now be given


 +++ Improvements and Bug Fixes:
 _______________________________


 Cernlib version 95a is now the default.

 Bug in calculation for `AVERAGE' command fixed.

 Filled and unfilled symbols for 2-D histograms did not work as
 advertised. If both of the limits were not zero, the entries outside
 the range still got drawn.

 `SHOW FRAME', `SHOW LIMIT' and `SHOW MODE'  commands added as aliases
 for `SHOW SCALE', because `SHOW SCALE' really shows all 4 settings.

 Evaluation of function with FPOS, FNEG, etc. functions now works.

 If you were projecting a histogram with an expression things could
 get confused and you got error messages from `AMNE'.

 Dumping of Ntuples improved further.

 The contents of a series of points are filled properly, including
 underflows and overflows if they are outside the set limits.

 The default spline and smooth options for NAGLIB and IMSL were not
 set properly.

 Histograms with no entries should now get drawn completely straight away.

 Copying and renaming of projections of Ntuples should work
 properly. The associated HBOOK histograms no longer get copied or
 renamed if the histogram is an Ntuple.

 If you tried to fetch a range of HBOOK histograms the range had be
 given as the last of a list of histogram numbers. This is now fixed.

 Associated functions etc. of HBOOK histgorams get the filename
 attached. The filename of projections is that of the original
 histogram with a `*' prepended.

 Either the parameter number or name can be given for the `FCN_DRAW',
 `FCN_PLOT' and `PROB_PLOT' commands.

 Plot coordinates work properly for L3 Lumi BGO and SLUM displays.
 Commands for font setting modified slightly.

 Plotting of L3 Lumi BGO sectors 15 -> 1 did not show any energy in
 sector 1.

