The Brezinski's idea of using Pad6-type approximants to estimate errors of Pad6 approximants is considerably developed. A new, more effective method based on this idea is presented and illustrated by numerical examples.
Applications of Padé approximants of type II in partitioning technique
✍ Scribed by I. Røeggen
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 398 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0020-7608
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Padé approximants of type II have been applied to solve equations of the type F(z) = 0. The method is compared with the first‐order iteration procedure, the Aitken‐Samuelson formula, and the Newton‐Raphson tangential method. As a test example the partitioning technique in its most simple form is applied to the Hamiltonian of a rigid symmetric‐top molecule in a static electric field. The proposed algorithm is found to be superior to the first‐order procedure and the Aitken‐Samuleson formula, and at least as effective as the Newton‐Raphson method.
📜 SIMILAR VOLUMES
The method of variational matrix Pade approximants is seen to unify the Green's function method and the variational principle for calculating scattering amplitudes. The surprising result that exact answers can be obtained for square well potentials is thereby proved, and the remarkable accuracy of t
A comparison is made between Pade and Pade -type approximants. Let Q n be the n th orthonormal polynomial with respect to a positive measure + with compact support in C. We show that for functions of the form where w is an analytic function on the support of +, Pade -type approximants with denomina