I need to evaluate the following integral
Integrate[step[(2BesselJ[x, x-X])/(x-X))^2]
and the result is supposed be a function of just X but when I run the code it doesn't evaluate it only sets up the integral.
Did you mean this?
Integrate[UnitStep[(2 BesselJ[x, x - X]/(x - X))^2], x]
