Re: my new old toy Message #4 Posted by Ellis Easley on 19 Sept 2002, 4:03 p.m., in response to message #2 by Tom (UK)
The comparison method was developed by Mike Sebastion and he calls it Calculator Forensics. You can read about it at his website:
http://calcinfo.com/
Mike prefers to compare calculators by the number that comes back from the asin operation. He has some suggestions on how to extract the non-displayed guard digits that involve multiplying by 1,000,000 or so. The idea of subtracting 9 and multiplying by 1,000,000 is my variation, which I started doing before I looked at Mike's website. I first saw the basic algorithm here.
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