[A83] Re: 83p os
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[A83] Re: 83p os
> Van: robvanwijk@gmx.net
>
> > Yes, for example the Z88DK uses it's own (very small btw) FP routines.
> > They
> > are blazingly fast opposede to TIs own. Your Ti83 calculates in
decimals,
> > because conversion between binary an decimal FP sometimes gives round
> > errors.
>
> Aren't round errors the reason TI-OS internally uses 14 digits, while
only
> displaying 10? Anyway, if they're blazingly fast, they should still be
very
> fast with an extra digit, which should prevent any errors (at least from
> displaying).
No that's not the problem that Ti want's to circumvent. Binary FP works
with adding 1/(n^2) numbers together. So you can't really code a decimal FP
number like 0,3...
1/ 4 = 0.25
1/32 = 0.03125
1/64 = 0.015625
--- +
0.296875
ad infinitum, you won't really get decimal precission. It's not the same...
Henk Poley <><
PS: There are probably better examples...
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