Integration problem - int answer int

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Radka Sochorová
Radka Sochorová on 13 Dec 2015
Answered: Walter Roberson on 13 Dec 2015
I am attempting to integrate function
q = int((10*r+r^3/20)*(besseli(0, (A*n*r)/1500))*(besselk(1,(5*n*B*sqrt(625+4*r^2)/24))),r,[0,10])
but it answerd
q = int(besselk(1, (5*B*n*(4*r^2 + 625)^(1/2))/24)*(r^3/20 + 10*r)*besseli(0, (A*n*r)/1500), r, 0, 10)
, so that means it cannot integrate funkcion or i'm doing it wrong way ? When i tried to integrate it on parts, problem was in the (4*r^2 + 625)^(1/2).
I would appreciate any help,
Thank you

Answers (1)

Walter Roberson
Walter Roberson on 13 Dec 2015
Some integrals have no closed form solutions, or at least no known method of reaching such a solution. This appears to be one of them.

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