[Python-Dev] Numerical robustness, IEEE etc.
Fredrik Lundh
fredrik at pythonware.com
Wed Jun 21 16:51:53 CEST 2006
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Wed Jun 21 16:51:53 CEST 2006
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Nick Coghlan wrote: >> BTW, prove me Decimal is not fast enough, ;) > > C:\Python24>python -m timeit -s "x = 1.0" "x+x" > 10000000 loops, best of 3: 0.137 usec per loop > > C:\Python24>python -m timeit -s "from decimal import Decimal as d; x = d(1)" "x+x" > 10000 loops, best of 3: 48.3 usec per loop > > I don't really know my definition of 'fast enough to be the basic floating > point type', but I'm pretty sure that a couple of orders of magnitude slower > isn't it. how fast does the corresponding C program run ? </F>
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