Name either curves or curvesls in the \usepackage command at the top of your main .tex file e.g.,
curves.sty or curvesls.sty should be in the default or a texinput directory. For the older LATEX 2.09 name them in the \documentstyle command.
Do not combine curves or curvesls with bezier in this command. They contain a fast powerful replacement for \bezier. Drawings using \bezier should not change their appearance.
is a large set of TEXnical drawing macros for plain TEX which LATEX pictures can also use. PICTEX requires a big TEX. I have not checked compatibility with curves or curvesls because I do not use PICTEX. _
curvesls.sty uses line drawing \specials to reduce require