#16697: implement symbolic lower incomplete gamma function
-------------------------------------+-------------------------------------
Reporter: rws | Owner:
Type: defect | Status: needs_work
Priority: major | Milestone: sage-pending
Component: symbolics | Resolution:
Keywords: gamma, | Merged in:
incomplete, special, functions | Reviewers: Buck Evan
Authors: Ralf Stephan | Work issues:
Report Upstream: N/A | Commit:
Branch: | 5f4a7fbd8598ef3fb22d8cb61d199dfffea23a8c
public/ticket/16697 | Stopgaps:
Dependencies: #17130, |
sympy-0.7.7 |
-------------------------------------+-------------------------------------
Comment (by buck):
Merged and attempted to run the doctests, and got this result:
{{{
./sage -t src/sage/functions/other.py
⬆ ✱ ◼
too few successful tests, not using stored timings
Running doctests with ID 2015-07-26-17-39-51-10ac5315.
Git branch: master
Using --optional=mpir,python2,sage,scons
Doctesting 1 file.
sage -t src/sage/functions/other.py
**********************************************************************
File "src/sage/functions/other.py", line 1076, in
sage.functions.other.Function_gamma_inc_lower._eval_
Failed example:
gamma_inc_lower(1/2,2)
Exception raised:
Traceback (most recent call last):
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 496, in _run
self.compile_and_execute(example, compiler, test.globs)
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 858, in compile_and_execute
exec(compiled, globs)
File "<doctest
sage.functions.other.Function_gamma_inc_lower._eval_[2]>", line 1, in
<module>
gamma_inc_lower(Integer(1)/Integer(2),Integer(2))
File "sage/symbolic/function.pyx", line 994, in
sage.symbolic.function.BuiltinFunction.__call__
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/function.cpp:10875)
res = super(BuiltinFunction, self).__call__(
File "sage/symbolic/function.pyx", line 507, in
sage.symbolic.function.Function.__call__
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/function.cpp:6887)
res = g_function_eval2(self._serial, (<Expression>args[0])._gobj,
File "sage/symbolic/pynac.pyx", line 185, in
sage.symbolic.pynac.pyExpression_to_ex
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/pynac.cpp:3934)
t = ring.SR.coerce(res)
File "sage/structure/parent.pyx", line 1310, in
sage.structure.parent.Parent.coerce
(/home/buck/trees/mine/sage/src/build/cythonized/sage/structure/parent.c:10682)
cpdef coerce(self, x):
File "sage/structure/parent.pyx", line 1339, in
sage.structure.parent.Parent.coerce
(/home/buck/trees/mine/sage/src/build/cythonized/sage/structure/parent.c:10628)
return (<map.Map>mor)._call_(x)
File "sage/symbolic/ring.pyx", line 927, in
sage.symbolic.ring.UnderscoreSageMorphism._call_
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/ring.cpp:10428)
return self.codomain()(a._sage_())
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sympy/core/mul.py", line 1467, in _sage_
s *= x._sage_()
AttributeError: 'erf' object has no attribute '_sage_'
**********************************************************************
File "src/sage/functions/other.py", line 1078, in
sage.functions.other.Function_gamma_inc_lower._eval_
Failed example:
gamma_inc_lower(1/2,1)
Exception raised:
Traceback (most recent call last):
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 496, in _run
self.compile_and_execute(example, compiler, test.globs)
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 858, in compile_and_execute
exec(compiled, globs)
File "<doctest
sage.functions.other.Function_gamma_inc_lower._eval_[3]>", line 1, in
<module>
gamma_inc_lower(Integer(1)/Integer(2),Integer(1))
File "sage/symbolic/function.pyx", line 994, in
sage.symbolic.function.BuiltinFunction.__call__
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/function.cpp:10875)
res = super(BuiltinFunction, self).__call__(
File "sage/symbolic/function.pyx", line 507, in
sage.symbolic.function.Function.__call__
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/function.cpp:6887)
res = g_function_eval2(self._serial, (<Expression>args[0])._gobj,
File "sage/symbolic/pynac.pyx", line 185, in
sage.symbolic.pynac.pyExpression_to_ex
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/pynac.cpp:3934)
t = ring.SR.coerce(res)
File "sage/structure/parent.pyx", line 1310, in
sage.structure.parent.Parent.coerce
(/home/buck/trees/mine/sage/src/build/cythonized/sage/structure/parent.c:10682)
cpdef coerce(self, x):
File "sage/structure/parent.pyx", line 1339, in
sage.structure.parent.Parent.coerce
(/home/buck/trees/mine/sage/src/build/cythonized/sage/structure/parent.c:10628)
return (<map.Map>mor)._call_(x)
File "sage/symbolic/ring.pyx", line 927, in
sage.symbolic.ring.UnderscoreSageMorphism._call_
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/ring.cpp:10428)
return self.codomain()(a._sage_())
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sympy/core/mul.py", line 1467, in _sage_
s *= x._sage_()
AttributeError: 'erf' object has no attribute '_sage_'
**********************************************************************
File "src/sage/functions/other.py", line 1092, in
sage.functions.other.Function_gamma_inc_lower._eval_
Failed example:
gamma_inc_lower(9/2,37/7)
Exception raised:
Traceback (most recent call last):
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 496, in _run
self.compile_and_execute(example, compiler, test.globs)
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 858, in compile_and_execute
exec(compiled, globs)
File "<doctest
sage.functions.other.Function_gamma_inc_lower._eval_[10]>", line 1, in
<module>
gamma_inc_lower(Integer(9)/Integer(2),Integer(37)/Integer(7))
File "sage/symbolic/function.pyx", line 994, in
sage.symbolic.function.BuiltinFunction.__call__
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/function.cpp:10875)
res = super(BuiltinFunction, self).__call__(
File "sage/symbolic/function.pyx", line 507, in
sage.symbolic.function.Function.__call__
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/function.cpp:6887)
res = g_function_eval2(self._serial, (<Expression>args[0])._gobj,
File "sage/symbolic/pynac.pyx", line 185, in
sage.symbolic.pynac.pyExpression_to_ex
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/pynac.cpp:3934)
t = ring.SR.coerce(res)
File "sage/structure/parent.pyx", line 1310, in
sage.structure.parent.Parent.coerce
(/home/buck/trees/mine/sage/src/build/cythonized/sage/structure/parent.c:10682)
cpdef coerce(self, x):
File "sage/structure/parent.pyx", line 1339, in
sage.structure.parent.Parent.coerce
(/home/buck/trees/mine/sage/src/build/cythonized/sage/structure/parent.c:10628)
return (<map.Map>mor)._call_(x)
File "sage/symbolic/ring.pyx", line 927, in
sage.symbolic.ring.UnderscoreSageMorphism._call_
(/home/buck/trees/mine/sage/src/build/cythonized/sage/symbolic/ring.cpp:10428)
return self.codomain()(a._sage_())
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sympy/core/add.py", line 732, in _sage_
s += x._sage_()
File "/home/buck/trees/mine/sage/local/lib/python2.7/site-
packages/sympy/core/mul.py", line 1467, in _sage_
s *= x._sage_()
AttributeError: 'erf' object has no attribute '_sage_'
**********************************************************************
1 item had failures:
3 of 12 in sage.functions.other.Function_gamma_inc_lower._eval_
[509 tests, 3 failures, 3.90 s]
----------------------------------------------------------------------
sage -t src/sage/functions/other.py # 3 doctests failed
----------------------------------------------------------------------
Total time for all tests: 4.1 seconds
cpu time: 2.5 seconds
cumulative wall time: 3.9 seconds
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/16697#comment:51>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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