Intervals: Interval arithmetic in Ruby

Intervals is a library implementing an interval system in the extended
real set that is closed under arithmetic operations. Correct rounding
ensures that the operations are inclusion-wise monotonic.

Intervals pre-1 is an experimental release that has has been tested on
Mac Os X/powerpc and on linux/intel. For the C package implementing
rounding-mode control to compile, a C99-compliant compiler is needed
(or at least one that knows about fenv.h).

The project homepage is at and the
library can be downloaded from

Feedback and suggestions are welcome!

Best regards,
Stefano T.

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