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"Vladimir G. Ivanovic" <vgivanovic@×××××××.net> skribis: |
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> http://en.wikipedia.org/wiki/Floating_point#Accuracy.2C_and_misconceptions_thereof |
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> "...financial software tends not to use a binary floating-point number |
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> representation. The "decimal" data type of the C# and Java programming |
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> languages, and the IEEE 854 standard, are designed to avoid the problems |
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> of binary floating point, and make the arithmetic always behave as |
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> expected when numbers are printed in decimal." |
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|
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What you really want for financial applications is fixed point |
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decimal, because you can’t throw away any digits except when |
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dividing. For hand calculators you want binary floating point with |
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guard digits. |
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|
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Enough research has gone into writing code for IEEE floating point |
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that I would not try to bypass it without a good reason. It’s there to |
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be your friend. |
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|
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-- |
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Barry.SCHWARTZ at chemoelectric.org http://chemoelectric.org |
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Free stuff / Senpagaj varoj: http://crudfactory.com (PDF) |
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'Democracies don't war; democracies are peaceful countries.' - Bush |
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(http://www.whitehouse.gov/news/releases/2005/12/20051219-2.html) |
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