error analysis

Initial impressions of RangeLab

December 30, 2011 | 0 Comments

I was rummaging around in the source of R looking for trouble, as one does, when I came across what I believed to be a less than optimally accurate floating-point algorithm (function R_pos_di in src/main/arithemtic.c). Analyzing the accuracy of floating-point code is notoriously difficult and ... [Read more...]

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