Issue 886 in sympy: simplify for general functions and derivatives fails

Updates: Labels: module-simplify Comment #3 on issue 886 by fabian.seoane: simplify for general functions and derivatives fails http://code.google.com/p/sympy/issues/detail?id=886 (No comment was entered for this change.) -- You received this message because you are listed in the

Issue 886 in sympy: simplify for general functions and derivatives fails

Updates: Cc: Vinzent.Steinberg Comment #4 on issue 886 by fabian.seoane: simplify for general functions and derivatives fails http://code.google.com/p/sympy/issues/detail?id=886 I can't reproduce the bug. Vinzent, can you confirm that this is fixed or provide a test case ? -- You

Issue 1124 in sympy: bug in collect

Updates: Labels: NeedsReview Comment #29 on issue 1124 by fabian.seoane: bug in collect http://code.google.com/p/sympy/issues/detail?id=1124 patch sended -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You

Issue 1276 in sympy: solve(-1 + x**2 + 0.111111111111111*(1.00000000000000 + 2.00000000000000*x)**2,x) fails

Updates: Owner: fabian.seoane Comment #1 on issue 1276 by fabian.seoane: solve(-1 + x**2 + 0.111*(1.00 + 2.00*x)**2,x) fails http://code.google.com/p/sympy/issues/detail?id=1276 It can be traced down to this: In [1]: poly_factors(2.0*x, x)

Issue 1221 in sympy: collect(-x/8 + x*y, -x) fails

Comment #2 on issue 1221 by fabian.seoane: collect(-x/8 + x*y, -x) fails http://code.google.com/p/sympy/issues/detail?id=1221 It's interesting to see that Mathematica fails to collect a lot of expressions that might seem obvious ... What do other CAS do ? -- You received this message

Issue 1116 in sympy: integrate outputs wrong wresult when the function is singular

Updates: Labels: module-integration Comment #13 on issue 1116 by fabian.seoane: integrate outputs wrong wresult when the function is singular http://code.google.com/p/sympy/issues/detail?id=1116 (No comment was entered for this change.) -- You received this message because you are

Issue 1277 in sympy: Exception in trivial integral

Status: Accepted Owner: Labels: Type-Defect Priority-Medium module-integration New issue 1277 by fabian.seoane: Exception in trivial integral http://code.google.com/p/sympy/issues/detail?id=1277 In [1]: integrate(n*x**(1/n), (x, 0, S.Half)) Out[1]: 1 1 -1 - - 1 +

Issue 1188 in sympy: integrate(1/sin(x)**2,x) fails

Updates: Labels: -module-integration ModuleIntegration Comment #4 on issue 1188 by fabian.seoane: integrate(1/sin(x)**2,x) fails http://code.google.com/p/sympy/issues/detail?id=1188 (No comment was entered for this change.) -- You received this message because you are listed in the

Issue 1188 in sympy: integrate(1/sin(x)**2,x) fails

Updates: Labels: -ModuleIntegration Integration Comment #5 on issue 1188 by fabian.seoane: integrate(1/sin(x)**2,x) fails http://code.google.com/p/sympy/issues/detail?id=1188 (No comment was entered for this change.) -- You received this message because you are listed in the owner or

Issue 886 in sympy: simplify for general functions and derivatives fails

Comment #5 on issue 886 by Vinzent.Steinberg: simplify for general functions and derivatives fails http://code.google.com/p/sympy/issues/detail?id=886 from sympy import * var('x') x f=Function('f') f(x)*f(x).diff(x,2)/f(x).diff(x)**2 f(x)*D(f(x), x, x)/D(f(x), x)**2

Issue 1120 in sympy: solve(Eq(cos(x), sin(x)), x) hangs

Comment #7 on issue 1120 by Vinzent.Steinberg: solve(Eq(cos(x), sin(x)), x) hangs http://code.google.com/p/sympy/issues/detail?id=1120 Is this result correct? Shouldn't it be atan(1)? -- You received this message because you are listed in the owner or CC fields of this issue, or because you

Issue 1020 in sympy: integrate(sqrt(y**2 - x**2)/x, x) can't do it

Updates: Labels: module-integration Comment #1 on issue 1020 by fabian.seoane: integrate(sqrt(y**2 - x**2)/x, x) can't do it http://code.google.com/p/sympy/issues/detail?id=1020 (No comment was entered for this change.) -- You received this message because you are listed in the owner

Issue 1124 in sympy: bug in collect

Updates: Labels: -NeedsReview Comment #30 on issue 1124 by ondrej.certik: bug in collect http://code.google.com/p/sympy/issues/detail?id=1124 Reviewed. Thanks! -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this

Issue 1120 in sympy: solve(Eq(cos(x), sin(x)), x) hangs

Comment #8 on issue 1120 by ondrej.certik: solve(Eq(cos(x), sin(x)), x) hangs http://code.google.com/p/sympy/issues/detail?id=1120 Yeah, I think it should be atan(1). -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this

Issue 1221 in sympy: collect(-x/8 + x*y, -x) fails

Comment #3 on issue 1221 by ondrej.certik: collect(-x/8 + x*y, -x) fails http://code.google.com/p/sympy/issues/detail?id=1221 That is interesting. Nevertheless, it's still a bug. -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred

Issue 1271 in sympy: Implement rsolve

Updates: Status: Fixed Labels: -Milestone-Release0.7.0 -NeedsReview Comment #3 on issue 1271 by mattpap: Implement rsolve http://code.google.com/p/sympy/issues/detail?id=1271 Thanks for review. The patch is now: