Some months ago some discussion indicated some limitations to the
available precision and to use of a binary point in Revolution
arithmetic.
I'm hoping to get my workload down by mid December so that I can take a
couple days to build my first pass at a high precision decimal
arithmetic library. By "decimal", I mean a virtual decimal point. By
"high precision", I mean more digits than standard. I will start out
simple and then perhaps make something fancier. I'll add trig and such
to what I like best.
This kind of thing has advantages but has some obvious disadvantages.
All operations and most relations will be by functions, making
expressions a little harder to read. Computation time will be much
slower. Conversion to and from text strings will most likely have to be
explicit.
I have a couple questions.
1.
Am I reinventing the wheel? Does someone have something like this
available or in the oven?
2.
I got to thinking that there might be others interested in this kind of
thing and there might be an advantage to me to make something that meets
popular needs. (I'm content should I be the only one.)
What kind of high precision decimal arithmetic would people be
interested in tinkering with, find useful, or even have needs for? How
many digits total? How many digits to the right of the decimal point?
Some ideas:
Fixed point-- 18 digits total, six past the decimal point? 30 digits
total, 12 past the decimal point?
Floating point-- 18 digits total? 36 digits total? Total digits at
least as much as specified in a property?
Indefinite-- total digits limited by memory (or property?). 12 digits
to the right of the decimal point? Digits to the right greater than or
equal a number in a property?
I have almost a month before I hope to make a stab at this, so your
pondering a little before commenting is OK for my schedule.
Dar Scott
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