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sympy
Python library for symbolic mathematics
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  ID Type Status Priority Milestone Owner   Summary + Labels ...
  779 Defect Started Medium Release0.5.15 mattpap   Poly: .has_any_symbols() and others fail  
  733 Defect New Medium Release0.5.15 ----   manual: automatically put sympy version for which the manual is generated  
  681 Defect Accepted Medium Release0.5.15 ----   use epydoc for the docs  
  850 Defect Accepted High ---- ----   x**2 == abs(x)**2 returns False  
  838 Defect Accepted High ---- ----   sin(x-y) + sin(y-x) doesn't simplify to 0  
  837 Defect Started High ---- ----   sin(x).rewrite(exp).rewrite(sin) doesn't return sin(x)   NeedsReview  
  836 Defect Accepted High ---- ----   lambdify(0, [x]) doesn't work for arrays  
  824 Defect Accepted High ---- ----   another caching bug  
  822 Defect Accepted High ---- ----   terminals still gets crappy sometimes  
  817 Defect Accepted High ---- ----   Integral().diff() fails.  
  810 Defect Accepted High ---- ----   Bug in Lambda interface  
  802 Defect Accepted High ---- ----   repr(pattern) produces infinite recursion  
  801 Defect Accepted High ---- ----   (a**2 - b - c).subs(a**2 - c, d) returns the original expression  
  797 Defect Accepted High ---- ----   bug in Lambda  
  793 Defect Accepted High ---- ----   collect(y*z**2 + z**2*x*y, y*z) is wrong  
  785 Defect Accepted High ---- ----   floor(log(8)/log(2)) is wrong  
  784 Defect Accepted High ---- ----   .match(g1 * log(gamma) + g2 * gamma + g3) doesn't work  
  783 Defect Accepted High ---- ----   factor(y/pi + y*sin(x)/pi) doesn't work  
  777 Defect Accepted High ---- ----   rename canonize to canonicalize  
  773 Defect Accepted High ---- ----   sympify("abc") should return an "abc" symbol  
  772 Defect Started High ---- ----   f.limit != limit  
  756 Defect Started High ---- ----   numpify()  
  748 Defect Started High ---- ----   Making the interface less dependent on the implementation  
  736 Defect Accepted High ---- ondrej.certik   nice outcome of tests  
  734 Defect Accepted High ---- ----   bisect et. al. doesn't seem to be working  
  723 Defect Accepted High ---- ----   printing of x/y/z should return x/(y*z)  
  713 Defect Accepted High ---- ----   Matrix transpose syntax/documentation  
  710 Defect Accepted High ---- ----   Sum2 vs Sum  
  707 Defect Accepted High ---- ----   move some wikis to wiki.sympy.org  
  704 Defect New High ---- ----   decimal logarithms (for instance) are not simplified  
  697 ---- Accepted High ---- ----   polish the mess with Basic.set_repr_level, torepr and tostr  
  695 Defect Accepted High ---- ----   evalf is missing a docstring, + it doesn't seem to work  
  693 Defect Accepted High ---- ----   wrong limit  
  692 Defect Accepted High ---- ondrej.certik   copy (not move) isympy to isympy.py  
  688 Defect Accepted High ---- ----   generate documentation from tests  
  683 Defect Started High ---- ----   speedup of sum(x**i/i,i=1..400)  
  680 Defect Accepted High ---- ----   collect doesn't work without a hack  
  679 Defect Accepted High ---- ----   bug in match  
  678 Defect Accepted High ---- ----   easy to use tree traversal  
  674 Defect Accepted High ---- ----   ( x*z*sin(2*phi)*r**7 ).match(matcher) is wrong  
  671 Defect Accepted High ---- ----   implement Matrix.apply_map like in Sage  
  668 Defect Accepted High ---- ----   Include Mark's Python code generation  
  666 Patch Started High ---- ----   sorting of expressions makes subs_dict() fail  
  665 Enhancement Accepted High ---- ----   include geometric algebra in examples  
  660 Defect Accepted High ---- ----   the output of testing is confusing  
  657 Defect Accepted High ---- ----   max(x, 0) should always return x  
  650 Defect Accepted High ---- ----   matrix calculus  
  649 Enhancement Accepted High ---- ----   Trigonometric functions should remove multiples of pi/2  
  648 Defect Started High ---- ----   py.test isn't picking up 5 factorials test when executed on the whole sympy  
  647 Defect Accepted High ---- ----   unify factorials  
  638 Defect Accepted High ---- ----   exp(-0.5 + 1.5*I).evalf() raises an exception  
  635 Defect Started High ---- ----   implement robust sandboxed testing either in py.test or nosetests  
  632 Defect Started High ---- ----   lambdify_numpy()  
  631 Defect Accepted High ---- ----   (1/((1-x)**2)).series(x,1) fails  
  626 Defect Accepted High ---- ----   solve fails when solving for f(x).diff(x)  
  624 Defect Started High ---- ----   TableForm from Mathematica  
  623 Defect Accepted High ---- ----   let's make cos(100).evalf() use math.cos by default  
  622 Defect Accepted High ---- ----   cos(100).evalf() is terribly wrong  
  621 Defect Started High ---- ----   swap the order of arguments in lambdify?  
  620 Defect Accepted High ---- ----   make lambdify work with numpy  
  615 Defect New High ---- ----   "unknown" functions  
  610 Defect Accepted High ---- ----   integrate should work for matrices too  
  608 Defect Accepted High ---- ----   pretty printing of factorials doesn't work  
  602 Enhancement Accepted High ---- ----   create alternate short name for sympify  
  601 Enhancement Accepted High ---- ----   let's port classes and objects from sympycore  
  600 Defect Started High ---- ----   sqrt(x**2) == abs(x) works only when x is real  
  597 Defect Accepted High ---- ----   Unable to subsitute derivatives  
  595 Defect Accepted High ---- ----   improve polynomial algorithms: factorization and non-rational coefficients  
  594 Defect Accepted High ---- ----   integrate(2**x, x) causes infinite recursion  
  590 Defect Accepted High ---- ----   integrate(cos((n+1) * x), x) hangs again  
  589 Defect Accepted High ---- ----   ./setup.py test stopped executing doctests...  
  580 Defect Accepted High ---- ----   Definite integration of rational functions gives wrong answers  
  578 Defect Accepted High ---- ----   implement ufunc as numpy has  
  576 Enhancement Accepted High ---- ----   __mul__, __add__ (and others) in Basic, or scattered all over SymPy?+tests  
  565 Defect Accepted High ---- ----   integrate does not ommit null terms and simplify fails to handle them afterwards.  
  550 Enhancement Accepted High ---- ----   when differentiating an expression with just one symbol - allow diff()  
  537 Defect Started High ---- ----   sympy <-> numpy interoperation  
  535 Defect Accepted High ---- ----   remove duplicate code in sympy/thirdparty/mpmath and sympy/numerics  
  516 Defect Accepted High ---- ----   fix sys.path mess  
  515 Defect Accepted High ---- ----   update matrix wiki with the new output code  
  486 Enhancement Accepted High ---- ----   port fast Add/Mul implementation from sympycore to sympy  
  477 Enhancement Accepted High ---- ----   types of expression (Add/Mul/Pow vs Polynomial)  
  474 Defect Accepted High ---- ----   factor hangs tests...  
  464 Defect Started High ---- ----   cleaning up the taylor terms and leading terms in functions+poorting functions from sympycore  
  458 Defect Started High ---- ----   bug in polynomials: Solving three simultaneous equations of three unknowns fails  
  441 Enhancement Started High ---- kirill.smelkov   hg: infrastructure  
  440 Defect Started High ---- ----   polish __call__ methods  
  419 Defect Accepted High ---- ----   integrating a derivative of an unknown function fails  
  339 Enhancement New High ---- ----   Series and expand as functions  
  135 Enhancement Started High ---- ----   Equation & Inequality class  
  849 Enhancement Accepted Medium