#16385: Fix rounding ZZ -> Python float
--------------------------------+----------------------------------
Reporter: jdemeyer | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.3
Component: basic arithmetic | Keywords:
Merged in: | Authors: Jeroen Demeyer
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
--------------------------------+----------------------------------
Consider the following conversions:
A. Sage `Integer` -> Python `float` (or Sage `RDF`)
B. Python `int` -> Python `float`
C. Sage `Integer` -> Sage `RR`
D. C `unsigned long` -> C `double`
Conversion A rounds to zero, while the others round to nearest (by
default). We should make A consistent with the rest.
Currently, `Integer` -> `float` uses `mpz_get_d()` which rounds to zero.
Doing the conversion via `mpfr` should fix this.
--
Ticket URL: <http://trac.sagemath.org/ticket/16385>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
