On Sun, 12 Sep 2004 13:57:02 +1200, steve@tla.co.nz 
wrote:

> The state of modern automotive electronics still means 
that the display in the BA Falcon XR6 that says you have 
24km range left, can have an error of 25km. Grrr !

Ah, the old "inappropriate resolution" problem!  :-)  
This tends to happen with digital displays - with a 
needle readout gauge there's always the built in 
resolution diluters of the width of the needle and the 
markings, and parallax.  Putting a magnifying glass over 
the fuel gauge so you can see *exactly* when it's empty 
isn't something any sane manufacturer would do...

I have a GPS that gives (among other things) altitude to 
a resolution of 1ft.  The best horizontal accuracy it 
has ever claimed is 23ft, and vertical accuracy is 
generally no better than half as good, so it's showing a 
figure to 1ft resolution that has a possible error 
getting on for 50ft!

"How many Vulcans does it take to change a lightbulb, 
Mr.Spock?"  "Approximately 1.0000000000000000, Captain"

:-)

Cheers,


Howard Winter
St.Albans, England


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