An Introduction to the Mathematical Theory of Attraction, Volume 2

a₁ Accordingly axis Berkeley Berkeley CALIFORNIA LIBRARY centre circuit coefficients components of force conductor constant coordinates corresponding cos² denote the components density dielectric direction direction-cosines distance distribution ds ds dv dv dx dx dx dy dz electric displacement electromotive force electromotive intensity element Ellipsoidal Harmonics energy due expression external finite focaloid force due Fresnel's ellipsoid given Hence I₁ induction infinite integral function isotropic k₂ Laplace's equation magnetic force magnetic moment magnetic potential magnetic shell normal obtain perpendicular plane of incidence potential quantity rational and integral refracted rays satisfies Laplace's equation sin² solid angle solid harmonic sphere spherical harmonics surface surface integral UNIVERSITY OF CALIFORNIA V₁ wave-normal wave-plane wave-surface whence Y₁ zero αξ μ²