revisit EFloat implementation #72

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mmp opened this Issue May 30, 2016 · 0 comments

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mmp commented May 30, 2016

The current implementation is based on maintaining an interval, which is fine, but has diverged (already) from the book text.

Krämer's paper "A priori worst-case error bounds for floating-point computation" (http://www.acsel-lab.com/arithmetic/arith13/papers/ARITH13_Kramer.pdf) outlines how to compute bounds using a computed value and an error interval; it would be nice to use his method to fix the bugs that caused the original shift to the interval-based approach (46de256) and get things back in better sync with the book text.

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