More recently started to learn the language Mathematica, decided to use it to solve one of the equations given scientific director at the university.
I have the equation of the type (attached image). Tried to implement it in Mathematica 10, but the result (graph) is not very similar to the truth. The question arises: mathematically, I (sort of) correctly described the equation, but the answer is clearly not what it should be. Tell me, what could be the problem?
In order Bessel equation used 0 , 1, 2.
I enclose a picture - should look like the graph .
Sorry for my English, I use Google translator.