No, please delete the line .ds@set-new-ev \\n[ds*old-ll]
and insert .nr ds*div-ll \\n[ds*old-ll] .if \\n[ds*format]=1 .nr ds*div-ll -\\n(Sin .ds@set-new-ev \\n[ds*div-ll] at exactly the possition where that line had been. Please don't change @ into something else.
