The Löwdin alpha-function method, in which displaced orbitals are expanded in an infinite series of spherical harmonics, is implemented for Slater-type orbitals using a ...

This paper presents the software package SYMORO+ for the automatic symbolic modelling of robots. This package permits to generate the direct geometric model, the inverse ...

The problem of interpolation by a convex curve to the vertices of a convex polygon is considered. A natural 1-parameter family of C algebraic curves solving this problem is ...

To enable students of calculus and precalculus to include auxiliary graphics conveniently in their graphs--and thereby reduce the potential for confusion and ...

This Mathematica 5.0 Package performs nonparametric spline smoothing for time series (called the Hodrick-Prescott-Filter in the econometrics literature). In addition to ...

SciDraw is a system for preparing publication-quality scientific figures with Mathematica. SciDraw provides both a framework for structuring figures and tools for generating ...

A package to generate the symbolic dynamic equations describing the relation between forces and movements for serial mechanical linkages with rigid constituents is presented. ...

The Banach-Tarski Paradox asserts that a solid ball in 3-space may be decomposed into five disjoint sets that can be rearranged to form two solid balls, each the same size as ...

The non-linear minimal surface equation is expressed as an ideal of differential forms. The isovector fields of the ideal are constructed using its transport property under ...

Let f be a function f: R -> R and zeta a root of f, that is, f(zeta)=0. It is well known that if we take x_0 close to zeta, and under certain conditions that I will not ...