An elementary treatise on Fourier's series and spherical, cylindrical, and ellipsoidal harmonics : with applications to problems in mathematical physics / William Elwood Byerly. Byerly, William Elwood, 1849- Fourier series. Harmonic analysis. QA403 .B89 1959 517.2 BYE "Unabridged and unaltered republication of the last edition." New York, Dover Publications c1893, 1959 c1893, 1959 1959 Text ix,287 p. : eng