\documentstyle
(see ).
The optional arguments are independent, so that any combination of one/two columns and nine/ten point text can be used. However, one column text in nine point is highly unreadable and two column text in ten point can give bad line breaks, so these combinations are not recommended.
Columns
A standard may be set in one column using the onecolumn
optional
argument, thus:
\documentstyle[onecolumn]{iso}If it is only necessary to set some parts of a document with one column, then the usual LaTeX commands
\onecolumn
and \twocolumn
may be used.
Two column text is the default, but you can explicitly demand it with:
\documentstyle[twocolumn]{iso}
Text size If a standard is to be set in one column, it is better to use ten point text for readability thus:
\documentstyle[onecolumn,10pt]{iso}
Nine point text is the default, but you can explicitly demand it with:
\documentstyle[9pt]{iso}