Opened 2 years ago
Closed 19 months ago
#22566 closed defect (fixed)
SymPy's ceiling() is not translated to Sage
Reported by:  pelegm  Owned by:  

Priority:  major  Milestone:  sage8.1 
Component:  calculus  Keywords:  ceil, integrate, sympy 
Cc:  Merged in:  
Authors:  Ralf Stephan  Reviewers:  Marcelo Forets 
Report Upstream:  N/A  Work issues:  
Branch:  319c8b9 (Commits)  Commit:  319c8b9f09511efbe75c851a85c8221dd58c1c5b 
Dependencies:  #23923  Stopgaps: 
Description (last modified by )
sage: ceil(x) ceil(x) sage: _._sympy_() ceiling(x) sage: _._sage_()  AttributeError Traceback (most recent call last) <ipythoninput97149a2430cab> in <module>() > 1 _._sage_() /home/ralf/sage/local/lib/python2.7/sitepackages/sympy/core/function.py in _sage_(self) 705 import sage.all as sage 706 fname = self.func.__name__ > 707 func = getattr(sage, fname) 708 args = [arg._sage_() for arg in self.args] 709 return func(*args) AttributeError: 'module' object has no attribute 'ceiling' sage:
Previous description was:
sage: integrate(ceil(x), x, 0, infinity, algorithm='sympy')
leads to
Traceback (most recent call last): File "<ipythoninput3257ec54e6dd3>", line 1, in <module> integrate(ceil(x), x, Integer(0), infinity, algorithm='sympy') File "/home/peleg/sage/local/lib/python2.7/sitepackages/sage/misc/functional.py", line 664, in integral return x.integral(*args, **kwds) File "sage/symbolic/expression.pyx", line 11766, in sage.symbolic.expression.Expression.integral (build/cythonized/sage/symbolic/expression.cpp:65026) return integral(self, *args, **kwds) File "/home/peleg/sage/local/lib/python2.7/sitepackages/sage/symbolic/integration/integral.py", line 773, in integrate return integrator(expression, v, a, b) File "/home/peleg/sage/local/lib/python2.7/sitepackages/sage/symbolic/integration/external.py", line 42, in sympy_integrator return result._sage_() File "/home/peleg/sage/local/lib/python2.7/sitepackages/sympy/integrals/integrals.py", line 1100, in _sage_ f, limits = self.function._sage_(), list(self.limits) File "/home/peleg/sage/local/lib/python2.7/sitepackages/sympy/core/function.py", line 707, in _sage_ func = getattr(sage, fname) AttributeError: 'module' object has no attribute 'ceiling'
Change History (7)
comment:1 Changed 2 years ago by
 Description modified (diff)
 Report Upstream changed from N/A to Not yet reported upstream; Will do shortly.
 Summary changed from Integrate ceil(x) via sympy raises an AttributeError to SymPy's ceiling() is not translated to Sage
comment:2 Changed 19 months ago by
 Branch set to u/rws/22566
comment:3 Changed 19 months ago by
 Commit set to 2afa0ee105e99e3b7c8185c8d7b4721a9b4d7c86
 Dependencies set to #23923
 Milestone changed from sage7.6 to sage8.1
 Report Upstream changed from Not yet reported upstream; Will do shortly. to N/A
 Status changed from new to needs_review
Last 10 new commits:
07f4744  23990: handle unequality

0ed659f  23990: do not evaluate

5f023ea  23990: convert relations from SymPy to Sage, with test

0f596bb  23990: fix patch

479e206  23990: sympy patchlevel bump

3e362ee  24006: SymPy > Sage conversion completely inside Sage

8dd5f88  24006: add missing file, fixes

a68d57f  23923: Interface cases function with SymPy's piecewise

b80d98c  23923: fix typo

2afa0ee  22566: interface SymPy's ceiling()

comment:4 Changed 19 months ago by
 Commit changed from 2afa0ee105e99e3b7c8185c8d7b4721a9b4d7c86 to 9494f6cc69630d3af9567c1179e56a0a62af736d
Branch pushed to git repo; I updated commit sha1. New commits:
9494f6c  22566: add test

comment:5 Changed 19 months ago by
 Commit changed from 9494f6cc69630d3af9567c1179e56a0a62af736d to 319c8b9f09511efbe75c851a85c8221dd58c1c5b
comment:6 Changed 19 months ago by
 Reviewers set to Marcelo Forets
 Status changed from needs_review to positive_review
LGTM.
comment:7 Changed 19 months ago by
 Branch changed from u/rws/22566 to 319c8b9f09511efbe75c851a85c8221dd58c1c5b
 Resolution set to fixed
 Status changed from positive_review to closed
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This has to be fixed in SymPy. This ticket should monitor progress and commit a doctest.