  In this article: a) a method is developed for calculating volumetric diagrams
of elastic scattering of microparticles (in particular, electrons and photons)
on single-layer and multi-layer statistically uneven surfaces; b) the
diffraction of elementary particles on crystals is explained without involving
de Broglie's idea of the wave properties of matter; c) the probability density
functions of the derivative of various stationary random processes are
obtained; d) volumetric diagrams of the scattering of particles and photons on
homogeneous and isotropic uneven surfaces with Gaussian, uniform, Laplace,
sinusoidal, and other distributions of unevenness are obtained.
