Orpie is a Reverse Polish Notation calculator for the console. If you’ve ever used an HP calculator you’ll feel right at home. if you haven’t… well, go back to your windows box and launch that buggy calculator desk accessory. In my case orpie let me stop worrying about writing “10 k” every time I ran dc(1).
Orpie was written in OCaml by Paul Pelzl and it there’s a Debian package maintained by Uwe Steinmann.
Go ahead and write:
$ echo “alias dc=orpie” >> $HOME/.bashrc
$ . $HOME/.bashrc
You won’t regret it.