That's definitely a bug. The two should always give the same answer. Can you open an issue for it?
Aaron Meurer On Mon, Feb 8, 2016 at 11:37 AM, hercidav <[email protected]> wrote: > Hi, > > I want to lambdify an integral including vector (sympy.Matrix) and I am > expecting to get a vector as well. I used the doit() function on Integral, > however the results are somewhat strange. Below is a simple example in the > sympy online shell (I hope it works just like that). > Basically, having a vector v = (a*t,b,c), I do integrate(v,t), which gives > me (a*t**2/2, b*t,c*t), an expected result. Doing Integral(v,t).doit() > gives a*t**4/3+b*t**2/2+c*t... Any suggestions? Do I have some wrong > assumptions? > Thanks a lot in advance, > > David > > > http://live.sympy.org/?evaluate=a%2Cb%2Cc%3Dsymbols%28%27a%20b%20c%27%29%0A%23--%0Av%3DMatrix%28[a%2Cb%2Cc]%29%0A%23--%0Avt%3DMatrix%28[a*t%2Cb%2Cc]%29%0A%23--%0Aintegrate%28vt%2Ct%29%0A%23--%0AIntegral%28vt%2Ct%29.doit%28%29%0A%23--%0A > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/43e7ee85-ba53-49e3-80f9-730469ca77ad%40googlegroups.com > <https://groups.google.com/d/msgid/sympy/43e7ee85-ba53-49e3-80f9-730469ca77ad%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6K9FrVSJzHcFLK%2BDPvRXMktsbbu1R6GCBguLk2LY1eOBg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
