On Mon, 17 Aug 2009, Michail Vidiassov wrote:
Dear All,
is there a replacement of "hdotsfor" from LaTeX to fill
several cells in a matrix row with one long series of dots?
Not that I know of. Currently, you can manually do this using TeX
primitives.
\starttext
\startformula
\startmathmatrix
\NC a \NC b \NC c \NR
\NC \spanomit\spanomit{\dotfill} \NR
\NC e \NC d \NC adlsadjsak \NR
\stopmathmatrix
\startmathmatrix
\NC a \NC b \NC c \NR
\NC 45 \NC \omit\spanomit{\dotfill} \NR
\NC e \NC d \NC adlsadjsak \NR
\stopmathmatrix
\stopformula
\stoptext
Hans, can we have a command to do this? Basically, \hdotsfor does two
things. Span a specific number of columns and fill them with dots. The
spacing between the dots should be configurable.
This is how amsmath defines it.
\newcommand{\hdotsfor}[1]{%
\ifx[...@xp\shdots@for\else\hd...@for\@ne{#1}\fi}
\newmuskip\dotsspace@
\def\shd...@for#1]{\hdots@for{#1}}
\def\hd...@for#1#2{\multicolumn{#2}c%
{...@th\dotsspace@1.5mu\mkern-#1\dotsspace@
\xleaders\hbox{...@th\mkern#1\dotsspace@.\mkern#1\dotssp...@$}%
\hfill
\mkern-#1\dotssp...@}%
}
I think that in Context, we can have the following.
\definemathmatrix[matrix][dotspaces=...]
and then in a matrix environment, \DC[3] (dot columns 3) expands to the
correct number of \omit and \spanomits. What do you think?
Aditya
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