Hi Aaron, thanks a lot for your answer. I have opened the issue: https://github.com/sympy/sympy/issues/10567
David Hercik On Tuesday, 9 February 2016 20:57:27 UTC+1, Aaron Meurer wrote: > > 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] <javascript:> > > 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] <javascript:>. >> To post to this group, send email to [email protected] <javascript:> >> . >> 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/5a7eac67-f4be-4f04-90ad-2774a25d816b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
