#8896: 0.0000000000000000000000000000 is parsed completely differently than
1.0000000000000000000000000000 for no good reason
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Reporter: was | Owner: AlexGhitza
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-4.4.3
Component: basic arithmetic | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by leif):
Replying to [comment:10 robertwb]:
> Replying to [comment:7 leif]:
> > Also, is it intentional that the exponent is ignored when computing
the required precision?
> > E.g., {{{1.0e-1000000000}}} as well as {{{1.0e-10000000000}}} evaluate
to zero, because of only 53 bits precision.
>
> Yes, of course. The size of the exponent is completely orthogonal to the
number of significant figures.
I don't agree either. If the "effective" exponent (the one in normalized
form) exceeds the maximum, one should either increase {{{prec}}}
accordingly or - more practical - raise an exception.
If not, this could be a pitfall. But '''I''' don't mind... ;-)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8896#comment:16>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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