#7682: Customize printing of real numbers
---------------------------+------------------------------------------------
Reporter: jason | Owner: AlexGhitza
Type: defect | Status: needs_info
Priority: major | Milestone: sage-4.3.2
Component: numerical | Keywords:
Author: Jason Grout | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
---------------------------+------------------------------------------------
Comment(by jason):
Okay, this is getting big now. I went through real_mpfr.pyx and added a
lot of doctests and documentation.
There are four doctests failing right now because I'm not sure if they are
bugs or if they are right. Here they are:
{{{
**********************************************************************
File "/home/grout/sage-4.3.1/devel/sage-main/sage/rings/real_mpfr.pyx",
line 3343:
sage: RR('nan').is_real() # fail until we decide what it should be
Expected nothing
Got:
True
**********************************************************************
File "/home/grout/sage-4.3.1/devel/sage-main/sage/rings/real_mpfr.pyx",
line 3344:
sage: RR('inf').is_real() # fail until we decide what it should be
Expected nothing
Got:
True
**********************************************************************
File "/home/grout/sage-4.3.1/devel/sage-main/sage/rings/real_mpfr.pyx",
line 3360:
sage: RR('nan').__nonzero__() # fail until we decide what it should be
Expected nothing
Got:
False
**********************************************************************
File "/home/grout/sage-4.3.1/devel/sage-main/sage/rings/real_mpfr.pyx",
line 3397:
sage: RR('nan')==RR('nan') # Fail until we decide what it should be
Expected nothing
Got:
True
**********************************************************************
File "/home/grout/sage-4.3.1/devel/sage-main/sage/rings/real_mpfr.pyx",
line 3419:
sage: RR('nan')==RR('nan') # fail until we decide what it should be
Expected nothing
Got:
True
}}}
Are those four answers right (the "Got:" parts)? See #8074 for more
corner cases.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7682#comment:13>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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