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+% File:       TeX Inputs cellular.doc
+% Author:     J E Pittman
+% Bitnet:     JEPTeX@TAMVenus
+% Internet:   JEPTeX@Venus.TAMU.EDU
+% Date:       November 8, 1988
+
+A cellular table is specified by:
+
+   \begincellular{specifications that change defaults}
+      appropriate macro definitions
+      column header specifications
+      row specifications (header and data)
+      \endcellular
+
+The following are examples of specifications that change defaults:
+
+   \pixelwidth=1in
+   \divide\pixelwidth by 300
+
+   The pixel width dimension register should be set to the resolution 
+   of the device used.  The default is 1/300th of an inch.
+
+   \setverticaladjustment -or- \sethorizontaladjustment
+
+   Some printers (such as the Xerox 9700s and 4050s) produce vertical 
+   and horizontal rules that have a different visual thickness for the 
+   same specified thickness.  The macros set vertical and set 
+   horizontal adjustment specified that vertical or horizontal rules 
+   are to be thickened by pixel width, which may correct this problem.   
+
+   \edef\everycolumn{\everycolumn
+      \leftrulewidth=0.4pt\relax
+      \rightrulewidth=\leftrulewidth
+      \leftborderskip=6pt plus 1fil\relax
+      \rightborderskip=\leftborderskip
+      \columnwidth=\zeropt\relax
+      \columnwidth=\zeropt\relax
+      }%
+
+   An \edef can be used to add material (usually default overrides) to 
+   the every column macro.  The information shown above reflect the 
+   defaults.  Care must be exercised to avoid introducing spurous 
+   spaces, which will be very visible when output.
+
+   \edef\everyrow{\everyrow
+      \toprulewidth=0.4pt\relax
+      \bottomrulewidth=\toprulewidth
+      \topborderskip=3pt plus 1fil\relax
+      \bottomborderskip=\topborderskip
+      \rowheight=\zeropt\relax
+      }%
+
+   Same as every column.
+
+   \tracingexpansions=1
+
+   This specification will request notes on how column and rows are 
+   expanded to accommedate spans.
+
+Any sort of macros can be defined within a cellular table.  An obvious 
+example is abbrevations for commonly used control sequence names.
+
+A column header is specified as:
+
+   \column{specifications}
+
+   The specifications are the same as for every column.  Note:  There 
+   is a considerable amount of processing required for these 
+   specifications, wise selection of defaults can decrease execution 
+   time significantly.
+
+   Column headers are optional.
+
+Rows are specified as a row header (similiar to a column header) and a 
+series of entry specifications.
+
+An entry specification can be any of the following:
+
+   \blank
+
+   A blank entry specification creates a completely blank spot in the 
+   table (no rules or text).
+
+   \mergeright
+   
+   A merge right specification merges the width of the entry into the 
+   width of the entry to the right.  It is used to create column 
+   spans.
+
+   \mergedown
+   
+   Similar to merge right.  Note:  The overhead for a merge down 
+   specification is considerably higher than a merge right.  
+   Therefore, when specifing an entry that spans both rows and 
+   columns, merge rights should be used as much as possible.  For 
+   example:
+
+                  > > > V                  V V V V
+                  > > > V      rather      V V V V
+                  > > > V       than       V V V V
+                  > > > *                  > > > *
+
+   \entry{horizontal mode material}
+
+   An entry macro takes the specified material and formats it as 
+   appropriate.
+
+It is not necessary to complete every row.
+
+Vertical mode material can be added after a row by specifying:
+
+   \noalign{vertical mode material}
+
+at any point in the row.  Multiple no aligns are permitted.