Hi,
If I type
sage: N(sqrt(floor(80000000000*pi) - 1))
I get a number as expected.
If I type
sage: h(x) = (floor(8*pi*10^x)-1)^(1/2)
sage: a = h(10); a
sqrt(floor(80000000000*pi) - 1)
that seems fine. But if I then do
sage: N(a)
Traceback:
File
"/usr/local/sage/sage-6.5/local/lib/python2.7/site-packages/sage/misc/functional.py",
line 1298, in numerical_approx return x._numerical_approx(prec,
algorithm=algorithm) File "sage/symbolic/expression.pyx", line 4874,
in sage.symbolic.expression.Expression._numerical_approx
(build/cythonized/sage/symbolic/expression.cpp:27342)
raise TypeError("cannot evaluate symbolic expression numerically")
Any idea what is going on here?
-- william
--
William (http://wstein.org)
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