Am 29.03.2014 21:04, schrieb Richard Fateman:
On Saturday, March 29, 2014 1:47:11 AM UTC-7, Christophe Bal wrote:
[...] what you could do is take any "float" and convert it
to an exactly equal numeric quantity that is a sympy rational.
And you could take that number and convert it to a float.
without loss.
There is a little {problem?} with this approach. The float algorithm are
generally more efficient that the exact rational ones.
Take your choice. Fast or correct.
That's a no-brainer.
SymPy doesn't do number crunching where numeric speed is of essence, it
does symbolic math and correctness is far more important, so "correct"
it is.
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