[sympy] derivatives of Max() and Min() using Heaviside() (#1707)
zanzibar7
modified: sympy/functions/elementary/miscellaneous.py
modified: sympy/functions/elementary/tests/test_miscellaneous.py
- added fdiff for Min() and Max()
- added diff Min() and Max()
- implement simple tests of Max().diff and Min().diff
You can merge this Pull Request by running:
git pull https://github.com/zanzibar7/sympy Max_and_Min_Derivatives
Or view, comment on, or merge it at:
https://github.com/sympy/sympy/pull/1707
Commit Summary
- derivatives of Max() and Min() using Heaviside()
File Changes
- M sympy/functions/elementary/miscellaneous.py (42)
- M sympy/functions/elementary/tests/test_miscellaneous.py (12)
Patch Links
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Aaron Meurer
SymPy Bot Summary: 
Failed after merging zanzibar7/Max_and_Min_Derivatives (19dcf8b) into master (c3e9d56).
@zanzibar7: Please fix the test failures.
Python 2.5.0-final-0: pass
Python 2.6.6-final-0: pass
Python 2.7.2-final-0: fail
Python 2.6.8-final-0: pass
Python 2.7.3-final-0: pass
PyPy 2.0.0-beta-1; 2.7.3-final-42: pass
Python 3.2.2-final-0: pass
Python 3.3.0-final-0: pass
Python 3.2.3-final-0: pass
Python 3.3.0-final-0: pass
Python 3.3.0-final-0: pass
**Sphinx 1.1.3:** pass
zanzibar7
The fail for Python 2.7.2-final-0 looks like some kind of issue with the imports I added. The error message is cryptic, looks like plotting libraries which shouldn't be effected by the code changes I made.
I don't have the tools for replicating this test-failure locally. Help or suggestions?
Aaron Meurer
That's a pyglet bug. You can ignore it.