Questions[gcalctool](ubuntu)

1. Is it I can use gcalccmd in Ubuntu server as how I use in terminal of my Ubuntu Desktop? If yes, can I convert currency using command as I do with gnome-terminal in financal mode

2. If yes, what is command line to convert currency? (ex: 1 USD to SGD)

   2.1 There's limit to convert the currency? (ex: max 100 times in a day only)

Is there an obvious way of shifting numbers in the gcalc-tool using an operator, such as << or >>
Am I missing an obvious shortcut?
Say I want to simply perform (1<<20), how can I do that without the need to shift by 15 and then by 5 using the drop-down buttons?

Alternatively, is there a good hex/binary calculator that you would suggest specifically oriented at hex/binary operations?

Thanks!

I just installed ubuntu 12.10 and gnome 3, I opened gcalctool and there is no way to change the base and the calc type. Am I right or it's just my stupidity?

Here is a screenshot of it:

I've noticed an f(x) button in calculator's (gcalctool) advanced mode. The button opens a drop-down list with some predefined functions. Is it possible to define more?