From: woodelf <bfranchuk at jetnet.ab.ca>
Long live fixed point math. :)
I can think at least one problem that I know that needs exact
and lots and lots of tiny numbers.
I used to write/maintain compilers for a language with fixed point
arithmetic built in (Coral 66). For some jobs much better than
floating point, such as storing angles as a fraction of a circle, so
that if you add/subtract two angles together you don't have to do mod
360 or 2Pi as it automatically overflows and gives you the correct
answer. Not so useful for describing spirals and helixes though.
Ex employee of Elliott Brothers (London) Ltd / Marconi Elliott
Avionic Systems Ltd / GEC Avionics in the 1970s