Calculators on desktops (was Re: Octal)

Chuck Guzis cclist at
Sat Sep 2 13:55:16 CDT 2006

On 9/2/2006 at 11:01 AM CRC wrote:

>>>> I have never seen a hex number with a decimal point anyway...
>> Nor will you; as Fred already pointed out, it's a hexadecimal point.
>> That aside, they do exist, though they're rare.  While practically
>> everything these days uses IEEE floating-point, which is binary-based,
>> there have been machines with floating-point arithmetic that worked in
>> other bases, like octal or hex.  For them, speaking of the "decimal"
>> point in a number printed in hex notation makes perfect sense.

Well, just wait a second.  Seems to me that years ago (I probably still
have the article), I recall an HP Journal publication that proposed to
represent decimal numbers with a decimal point with a binary integer part
and a fractional part made up of groupings of 10 bits to represent 000-999.
 I don't recall the gist of the perceived advantages.  But one might argue
that this was a case of a hex number with a decimal point.


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