(c) Adriano Amaricci (-2015) [from an original work of Kristjan Haule (2011)]
Version 0.3 [17.Aug.2015]
-k=; --key=
[column prefix, (default=#) (allowed=#,%,$,_,@) ]-c=; --cmt=
[comment character (default=#)] <<<<<<< HEAD-l=; --line=
[select specific line to plot] =======-l=; --lines=
[select specific line(s) to plot, single or first:last]
2640dcb2760037e9c728c962756bf55aabbd1e7a
-b; -wl; --with-line=
[print line number as first column]-lf=; --legend-file=
[specify legend file (default=trans.info)]
[... | ] trans [options] [file_index:]function(column1) [file1 file2 ...]
$ cat file | trans #1 #3-#2 'tan(#4)'
$ trans co1, #2-#1, #3/#1 file1 file2
note: check your shell passes special characters to trans! characters like ,$,# need a double-quote or preceding slash!!