Release 2.2.0

API changes

Support for NaN, POSITIVE_INFINITY, NEGATIVE_INFINITY in BigFloat

The BigFloat class supports now the same special values as double:

• NaN for values that cannot be represented a number
• POSITIVE_INFINITY to represent positive infinite values
• NEGATIVE_INFINITY to represent negative infinite values

Bugfixes

No Bugfix changes.

Enhancements

Performance optimizations

Performance analysis of the basic operations on BigDecimal has shown that the add() and subtract() operation are faster without specifying a MathContext argument. The multiply() operation has a more complex performance behaviour. A single multiplication tends to be faster without MathContext argument but the following operations are at risk to be slower since it accumulates precision.

Many operations where manually fine tuned to find the optimum performance.

The following chart shows performance improvements for the involved operations:

Examples

Note: The example code is available on github, but not part of the big-math library.

No changes in the examples.