Actually, his patch was pushed up to a pull request, which has since
been merged (see https://github.com/sympy/sympy/pull/632). This
should now work in the official SymPy git master.
Aaron Meurer
On Fri, Oct 7, 2011 at 11:31 AM, Scott <scotta_2...@yahoo.com> wrote:
>
> Mateuz,
>
> Did might you push your patch to a git fork? Where did your local
> patch go?
>
> V/R
>
> Scott
> On Oct 6, 1:04 pm, Mateusz Paprocki <matt...@gmail.com> wrote:
>> Hi,
>>
>> On 6 October 2011 11:57, Scott <scotta_2...@yahoo.com> wrote:
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> > How do I coerce integrate(a/(a**2+b*a+b*c*x**2),x) to yield.
>> > This may be a double post.
>>
>> > Sqrt[b] Sqrt[c] x
>> > Sqrt[a] ArcTan[-------------------]
>> > Sqrt[a] Sqrt[a + b]
>> > -----------------------------------
>> > Sqrt[b] Sqrt[a + b] Sqrt[c]
>>
>> > Rather than:
>> > var('x,a,b,c')
>> > integrate(a/(a**2+b*a+b*c*x**2),x)
>>
>> > a*((-b*c/(4*a*b**3*c**2 + 4*a**2*b**2*c**2))**(1/2)*log(x + (-b*c/
>> > (4*a*b**3*c**2 + 4*a**2*b**2*c**2))**(1/2)*(2*a*b + 2*a**2)) - (-b*c/
>> > (4*a*b**3*c**2 + 4*a**2*b**2*c**2))**(1/2)*log(x - (-b*c/
>> > (4*a*b**3*c**2 + 4*a**2*b**2*c**2))**(1/2)*(2*a*b + 2*a**2))
>>
>> I would start from making x, a, b,c real, e.g.:
>>
>> In [4]: var('a:c,x', real=True)
>> Out[4]: (a, b, c, x)
>>
>> In [5]: integrate(a/(a**2+b*a+b*c*x**2),x)
>>
>> but this fails, seehttp://code.google.com/p/sympy/issues/detail?id=2718.
>>
>>
>>
>> > Thanks
>>
>> > Scott
>>
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>>
>> Mateusz
>
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