Released versions of package FORMS
                                                                   
                                                     
    5.10 (1997, October):
            'formsdoc.htm','gse.for','forms.for','length.for',
            'srp.for', 'calcomp.for','calcomp.inc','calcops.for',
            'calcops.inc', 'pallet.for': Moved from package MODEL.
            'calcomp.for','calcops.for': BLOCK DATA subprograms
              canceled.
            All error descriptions moved towards the corresponding
              reporting statements.
            'gse.for': *** Considerably revised version. ***
            *** new ***
            All Fortran files supplemented with HTML references.
            'grdpts.for'
            'mgrd.for'
            'grdnew.for'
            'grdcal.for'
            'grdran2d.for'
            'grdmerge.for'
            'grdps.for'
            'cremove.for'
                                                     
    5.20 (1998, October):
            All error messages in the Fortran files, previously
              generated by statements like PAUSE 'Error ...', are now
              generated by CALL ERROR('...') in order to enable to fit
              the error handling for a particular computer by editting
              file 'error.for' (the date of subroutines not updated).
            Most warning messages in the Fortran files, previously
              generated by statements like PAUSE 'Warning ...', are now
              generated by CALL WARN('...').
            'ss.for','sp.for': *** Moved from package CRT. ***
            'eigen.for': *** Moved from package NET. ***
            'formsdoc.htm' split into 'formsdoc.htm', 'formsver.htm' and
              'formsdat.htm', list of files moved to 'forms.htm'.
            'forms.for': New subroutines to write and read 3-D data
              cubes for several time levels (4-D data cubes).  Incorrect
              handling of FORMATTED/UNFORMATTED files for lowercase
              arguments of subroutines fixed.
            'length.for': Subroutine LOWER moved from 'sep.for'.
            'sep.for': New subroutines WSEP1, RSEP3Q, WSEP3R and WSEP3I.
              Subroutine WSEPR updated (some reals written in integer
              format).
            'gse.for','grdcal.for','grdpts.for': Some bugs fixed.
            'calcops.inc','srp.for','grdran2d.for': Minor updates.
            'mgrd.for': *** All output grids (data cubes) now written
              into a single file by default, N4 appended to input SEP
              file. ***
            'grdnew.for': *** Input data changed *** (second input SEP
              file discarded).
            'grdran2d.for': *** Input data changed *** (second input SEP
              file discarded, ISEED moved to the SEP file).
            *** new ***
            All MS-DOS batch files '*.bat' and Unix scripts '*'
              replaced by corresponding Perl scripts '*.pl' or by
              history files '*.h' containing the lines specifying how to
              run the programs.
            'error.for': Subroutines to handle errors and warnings.
            'ss.for':
              *** Input data changed to SEP format ***
              Calculating all 3 components within a single run.
              Taking PS filenames from input history file.
              EXTERNAL statements fixed problems with some compilers.
              Some other corrections and updates.
            'sp.for':
              *** Input data changed to SEP format ***
              Overlaying seismograms of several GSE files.
              Plotting all 3 components within a single run.
              Selecting receivers according to the receiver file.
              Taking PS filenames from input history file.
              Some other corrections and updates.
            'calcops.for': New entry PLOTN enables to specify the name
              of the output PostScript file.  Now, spaces plotted by
              subroutine SYMBOL are not included into the bounding box.
            'grdcal.for': Updated from 3-D to 4-D data cubes.  3-D data
              cubes may be also be used for 4-D calculations.  Values of
              constants may now be taken from the input SEP parameter
              file.  Conversion to integer data cubes introduced.
            'grdfd.for', 'grdnorm.for': New programs.
            'grdps.for': Considerable revisions:  Updated from 3-D to
              4-D data cubes (snaphot generation).  Multiple input data
              cubes may now be displayed in the same figure (e.g.,
              colours from the first data file and shades from the
              other data file).  Various length units (cm,in,pt)
              enabled to facilitate bitmap generation.
              *** Input data changed. ***
            'sep.pl', 'forms.pl', 'go.pl', 'echo.pl', 'append.pl',
            'chk.pl', 'compdel.pl': New programs and subroutines
              coded in Perl.
                                                     
    5.30 (1999, June):
            'error.for': *** Errors and warning messages are written to
              file 'error.out'. ***
            'go.pl': *** Execution is terminated if an error warning is
              encountered in file 'error.out'.  Subroutine CHK writes
              error messages to file 'error.out'. *** Few bugs fixed.
              Documentation improved.
            'forms.for': A minor bug fixed.
            'pallet.for': Hue domain changed from 2*pi to 1.
            'ss.for': Two bugs fixed.
            'gse.for','grdfd.for': Comment lines with data description
              updated.
            'grdcal.for', 'grdnorm.for': *** Several bad bugs fixed. ***
            'grdps.for': Specification of the colour of undefined
              values enabled.  Some bugs fixed.
            *** new ***
            'colors.for': Subroutines to linearly interpolate discrete
              colour maps in RGB space
            'hsv.dat': Data for 'colors.for' specifying the HSV (HSB)
              colour scale for interpolation in the RGB colour space.
            'wrl.for': Subroutines to facilitate writing VRML and POV
              files.
            'iniwrl.for': Program to initialize a VRML file.
            'ptswrl.for': Program to convert points into VRML.
            'linwrl.for': Program to convert lines into VRML.
            'srfwrl.for': Program to convert triangulated surfaces into
              VRML.
            'trgl.for': Program to divide polygons on a curved surface
              into triangles, right-handed with respect to the surface
              normals.
            'plgn.for': Program to convert polygons described by names
              of the vertices into the same polygons described by
              indices of the vertices.
            'ptsgrd.for': Program to generate grid file containing
              undefined values at gridpoints closest to the given points
              and zeros elswhere.
            'do-test.for': Program to test compilation of DO loops
            'copy.pl': Perl script to copy files.
                                                     
    5.40 (2000, May):
            'pallet.for', 'srp.for':
              *** Input data changed to SEP format. ***
            'grdpts.for', 'mgrd.for', 'grdnew.for', 'grdmerge.for',
              'grdcal.for', 'grdnorm.for', 'grdfd.for', 'grdran2d.for',
              'grdps.for':
              *** Input data changed. ***
              Multiple files from * device moved to the history file.
            'forms.htm': Considerably revised.
            'formsdoc.htm' discarded (information moved to 'forms.htm').
            'formsdat.htm': Slightly revised (defaults for coordinates
              of points and lines).
            'forms.for': New subroutines WMAT and RMAT for matrix
              elements.  Subroutine FORM1 considerably updated.
              Comments corrected.
            'wrl.for', 'iniwrl.for', 'ptswrl.for', 'linwrl.for',
              'srfwrl.for': Extended to write GOCAD format (not
              debugged).  Description corrected.
            'trgl.for': Several bugs fixed. Cosmetic changes.
            'ss.for': Updated and corrected (parameter SMALL, error
              SS-05, SIGPLOT=' ', cosmetic changes, comments, etc.).
            'srp.for': Maximum number of generated files increased.
            'grdpts.for': Description corrected.
            'mgrd.for': Numbers in generated filenames decreased by 1.
            'grdnew.for': Corrected.
            'grdcal.for': Program for grid calculations extended to
              include also operations with vector and matrix elements.
              Two bugs fixed.
            'grdnorm.for': *** Considerably corrected. ***
            'gels.for': Moved from package MODEL to FORMS.
            'go.pl': *** Default input data for programs enabled. ***
               The default data is the name of the history file.
            'compdel.pl': Missing description supplemented.
            'corfun.h': Corrected.
            'grdran2d.dat' and 'grdps.dat' deleted (not used even in
              version 5.30).
            'plgn.for', 'sp.for', 'ptsgrd.for':
              Cosmetic changes.
            'grdps.for':
              New parameter SHOWPAGE useful to disable the PostScript
              'showpage' command.
            'error.for', 'color.for':
              Comments corrected.
            *** new ***
            'gksps.for': GKS to PostScript interface.
            'pictures.for': Program to draw lines and points.
            'trglps.for': Program to display triangulated 2-D velocity
             and other sections in PostScript.
            'linden.for': Program to make LINes more DENsely sampled.
            'inv.cal','sqrt.cal','invsub.cal', 'reldev.cal',
              'addsob.cal' and 'eq.cal':
              New command files for 'grdcal.for'.
            'loc0.cal','loc1.cal','loc2.cal':
              New command files for 'grdcal.for' to perform nonlinear
              kinematic location of seismic hypocentre.
            'grdfft.for': Program to compute the 1-D, 2-D or 3-D Fourier
              transform of a real or complex function defined on 1-D,
              2-D or 3-D grid of points.
            'grdran.for': Program to compute the pseudorandom numbers on
              a given grid, distributed uniformly between -0.5 and 0.5.
            'grdcor.for': Program to compute the values of the spectral
              filters corresponding the typical correlation functions
              of random media on a given grid.
            'grdstat.for': Program to rescale gridded data to given
              statistical properties.
            'grdckn.for': Program to compute the values of the Von
              Karman correlation functions.
            'grdte.for': Program to compute the values of a real or
              complex function, described in terms of the Taylor
              expansions of its amplitude and phase, on a given grid.
            'binasc.for': Program to convert gridded data (data cubes)
              from binary files to formatted ascii files.
            'ascbin.for': Program to convert gridded data (data cubes)
              from formatted ascii files to direct-access binary files.
            'gmt.for','gmgm.for','smgm.for','dmgm.for','smsm.for',
              'smsmsm.for','gmdmgmt.for','sminv.for','smpower.for',
              'smeigen.for':
              Programs to perform operations with general matrices (gm),
              symmetric matrices (sm) and diagonal matrices (dm).
            'sinv.for' and 'mfsd.for': Subroutines of the IBM Scientific
              Subroutine Package employed by program 'sminv.for'.
            'eigennr.for': Subroutine to compute eigenvalues and
              eigenvectors of a real symmetric matrix, using subroutines
              of Numerical Recipes.
            'corfft.h': Analogue to 'corfun.h', but using 3-D programs
              'grdran.for', 'grdfft.for', 'grdcor.for', 'grdcal.for'
              and 'grdstat.for'.
            'cknfft.h': History file to compare medium correlation
              functions calculate the by FFT and analytically.