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A method for efficiently evaluating integrals of the type AN, l1, l2, k(Z, R) = ![\int^{\infty}_{0} \bigg[\int^{\infty}_{0}r^{N+2}{\rm exp}-(Zr)j_{l_1}(Sr){\rm d}r\bigg]](//journals.iucr.org/j/issues/1994/01/00/pn0149//teximages/pn0149fi1.gif)
× jl2(SR)Sk dS is discussed and closed-form expressions for those integrals useful in the calculation of the electrostatic potential, the electric field and the electric field gradient are given.
![\int^{\infty}_{0} \bigg[\int^{\infty}_{0}r^{N+2}{\rm exp}-(Zr)j_{l_1}(Sr){\rm d}r\bigg]](http://journals.iucr.org/j/issues/1994/01/00/pn0149//teximages/pn0149fi1.gif){kind=small}
× jl2(SR)Sk dS is discussed and closed-form expressions for those integrals useful in the calculation of the electrostatic potential, the electric field and the electric field gradient are given.
