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  • License: Freeware
  • Last update: 6 years ago
  • Total downloads: 49
  • Price: Free |
  • Operating system: Mac OS X
  • Publisher: Bill Rossi
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mac default iconDecimal Floating Point For Mac Publisher's description

Dfp is a radix 10000 floating point math library. It features compile-time...

Dfp is a radix 10000 floating point math library. It features compile-time defineable precision, usual arithmetic functions (add, subtract, multiply, divide, etc.), and a set of mathematical functions including: natural logarithm and exponential, trigonometic functions and their inverses.

Dfp also has IEEE-854 defined abilities such as user-specified rounding modes, user-defineable trap handlers, and status flaqs.

# Design Goals

The following design goals were used to guide development of dfp.

* Accurate representation of decimal numbers.
* Accurate, well defined results
* Ability to work with high precision. Ability to set precision at compile time.
* Portability.
* Ease of use
* Performance

# Major Design Decisions

* Radix of 10000 was chosen because it offer exact representation of decimal numbers and better performance than a smaller radix would.

* Dfp is written in Java, this makes it somewhat portable to start. To enhance portabilty more, it uses a minimal subset of the language and core library APIs. This will ensure portabity across Java implementations, and to other programming languages.

* Dfp complies with IEEE-854 with a few minor exceptions. If strict compliance is desired, the subclass rossi.dfp.dfpdec fixes most of these these minor inconsitancies at the cost of some performance.

# Comparison with double and Big Decimal

* Dfp mantains all the features of double along with other IEEE specified features. Like BigDecimal, it can accurately represent decimal numbers.

* Feature comparison:

System Requirements:

В· Java
Program Release Status: New Release
Program Install Support: Install and Uninstall

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