First published in 1893, Byerly's classic treatise on Fourier's series and spherical, cylindrical, and ellipsoidal harmonics has been used in classrooms for wel

Originally published over a century ago, this work remains among the most useful and practical expositions of Fourier's series, and spherical, cylindrical, and

Moments as projections of an image’s intensity onto a proper polynomial basis can be applied to many different aspects of image processing. These include inva