Re:How is it... (Score 4, Informative)

Yes, it does have a decent calculator, but multiplying large numbers hardly proves it.

Here:

(18:42:30) SmarterChild: More calculator requests:

What is 7.1 * ((3.17 + 9.41 + 27.81) * 4) / 16.4) ?
shortcut: 7.1*(((3.17+9.41+27.81)*4)/16.4)
What is sqrt(3**2 + 4**2) * log(sin(pi / 2)) ?
shortcut: sqrt(3**2+4**2)*log(sin(pi/2))

Or how about:

(18:42:43) [x]: set output radix to 16
(18:42:44) SmarterChild: output radix set to 16
(18:42:59) [x]: #0f4 | 8#700
(18:43:01) SmarterChild: 500 8#764

These are of course slightly undocumented. The radix is similar to the emacs calculator.