[SciPy-user] Numerical stability and Legendre polynomials
Fernando Perez
Fernando.Perez at colorado.edu
Fri Sep 9 14:58:59 EDT 2005
Yaroslav Bulatov wrote:
> I'm using 64 bit arithmetic (floats), scipy version 0.3.2, why do you
> get higher accuracy?
I'm not really. Relative differences O(1e-15) in floating point (these are
absoulute, but we're comparing against zero) are essentially numerical noise.
Compiler differences, libc differences, whatever. For all intents and
purposes, the results are quite similar and I would not worry about the
discrepancy.
Cheers,
f
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