Dear all, <br>please help me solve the following integral. <br> I need to solve this integral for one of my problems. $$\frac{L}{2\pi}\int_0^\infty\int_{-\infty}^\infty \frac{J_0(\rho R_0)J_0(\rho r)Sinc(\frac{Lk_z}{2})e^{jk_zz}}{(\frac{\omega_0}{c})^2-(\rho^2+k_z^2)}\rho\operatorname{d}\rho\operatorname{d}k_z$$ $J_0(x)$ is first kind bessel function and $Sinc(x)=sinx(x)/x$.<br> Is this integral have an analytical solution? <br> I tried to solve it with Mathematica and Matlab but they even can not solve the simplest orthogonal equation: $$\int_0^\infty J_0(ux)J_0(vx)x\operatorname{d}x=\frac{1}{u}\delta(u-v)$$ Please help me solve this integral.<br> Thanks.