Update to new symengine

[sumith1896]

diff method got refactored.

[rwst]

The fix for the redeclaration of diff is simple but this is not all. Major drawback is that Cython has no std::multiset which is used as return value of SymEngine::Derivative::get_symbols.

[isuruf]

@rwst, that issue is fixed here, #43, but there's still some more work for series. I won't be able to look into this till next week.

[sumith1896]

Can be closed via #45 ?

[certik]

Yes, this is fixed.

[rwst]

@isuruf Agree that there is more work. For starters, it's soo slow, try
interrupting, it's somewhere in SymPy.

On Mon, 1 Feb 2016 21:45 Ondřej Čertík notifications@github.com wrote:

Yes, this is fixed.

—
Reply to this email directly or view it on GitHub
#38 (comment)
.

[rwst]

It's sympy/sympy#10262 again.