Search Results for "radial basis function"

DIANNA (Diffraction Analysis of Nanopowders) is a free software developed to simulate atomic models of structures from an ensemble of nanoparticles and to calculate their whole X-ray powder diffraction patterns and the radial distribution function. The main objects of investigation are the particles whose coherent scattering domains do not exceed several nm. DIANNA is based on the ab initio method using the Debye scattering equation. This method makes it possible to obtain information on the atomic structure, shape and size of nanoparticles. It can be applied also to non-periodic materials or coherently ordered structures. ...

...Romanowski, "Adaptive solver of a Kohn-Sham equation for an atom", Modelling Simul. Mater. Sci. Eng. vol. 17, 045001 (2009) 2. Z. Romanowski, "Application of h-adaptive, high order finite element method to solve radial Schrödinger equation", Molecular Physics, vol. 107, pp. 1339-1348 (2009). Further questions: romz@wp.pl

...Its most sophisticated feature is a configuration manipulation CI package that provides symmetry filtering, orbital occupation selection, and a choice of many other wave function and/or basis characteristics. The symmetry filtering includes the ability to deal directly with certain non-Abelian groups as well as all Abelian groups. Linear systems can be treated exactly within the full continuous D-infinity-h or C-infinity-v groups. The package is completely modular, allowing control over ordering of most steps within the limitations imposed by the theory. ...

The purpose of this program is to plot the waveforms of the hydrogen wave function. The program has 4 option's. First, plotting the radial function, second, plotting the radial probability, third, 2d wave function,last, 3d wave function.