On Feb 5, 2015 4:06 AM, "Wang, Zeng-Sheng (TS-GSD-China-ZZ)" < zengsheng.w...@hp.com> wrote: >
> > a b c x y z 1 2 3 > > d e f q w e n 3 4 5 > > j p k a s d 8 9 2 1 > > > > how to use $a, $b and $c product $x? > Along with what was already mentioned about variable names, if you're asking about math, look at pdl. If you're asking about output format, you can either use printf, look at one of the grid modules, or use perltex (or there's probably a docbook or mathml module or two but I haven't looked).