9 Mar
2008
9 Mar
'08
4:10 p.m.
From: Jim Leonard <trixter at oldskool.org>
Roger Holmes wrote:
In this case, 1/262144 of a circle as it was on an 18 bit computer,
but today you would probably use 32 bits. There's nothing special
about dividing a circle into 360 parts anyway, 420 would have allowed
division by all numbers up to 7, 840 up to 8, 2520 up to 10, 27720 up
to 12 etc but 360 has no great benefit until we started dividing the
day into 24 hours, which is also arbitrary.
Roger Holmes.
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
Wouldn't that imply that your system works off of a basis of 256
degrees
instead of 360?