symengine.py v0.4.0

Breaking Changes

• python 3.3 support is dropped. (3.4 is dropped in the next version)
• out parameter of lambdify is keyword only - #171
• evalf defaults to symbols domain - #263

New Features

• Common Subexpression Elimination - #193, #209
• Generate SciPy LowLevelCallable from Lambdify - #201
• Enable pickling for LLVMDouble class - #213
• Latex printing on jupyter notebooks - #261
• Relationals - #159
• Dummy class - #172
• Logic classes - #168
• Wrap new special functions and constants - #162
• as_numer_denom - #179
• as_real_imag - #217
• count_ops - #231
• Singletons - #178
• Added Expr class for sympy compat - #182
• __div__ for matrices - #184
• expand(deep=False) - #187
• Support for order kwarg in Lambdify - #188
• Add more attributes for sympy compat - #180
• Convert BooleanAtom to bool - #195
• Implement diff(ex, x, n) - #226
• Add indexing matrix with an array - #229
• Support __slots__ when subclassing Symbol - #243
• Convert Basic to float - #265
• xreplace for matrices - #282
• Make constants return true for is_number - #283

Bug Fixes

• Fix lambdify for heterogenous outputs - #171
• Fix testing when sympy is not installed - #175
• Fix DenseMatrix.atoms - #191
• Fix slicing in matrices - #254

Contributors for this release are,

• Shikhar Jaiswal
• Isuru Fernando
• Björn Dahlgren
• Ondřej Čertík
• Nilay Pochhi
• Alan Hu
• xoviat
• Jean-Christophe Fillion-Robin
• Moritz E. Beber