Baden Powell and Charnwood Forest

Science and religion: Baden Powell and the Anglican debate, 1800–1860

from a wide range of secondary sources. While it tries for a comprehensive overview, it does rely heavily on the Anglo-American experience. Like Peter Gay's study of middle-class sexuality, Russett's work will be mined for a great deal of insightful material, but it also has some rather substantial drawbacks. For this presents the reader who is interested in the continental parallels with certa...

Edwin Powell Hubble

A multivariate Powell-Sabin interpolant

We consider the problem of constructing a C1 piecewise quadratic interpolant, Q, to positional and gradient data defined at the vertices of a tessellation of n-simplices in IR. The key to the interpolation scheme is to appropriately subdivide each simplex to ensure that certain necessary geometric constraints are satisfied by the subdivision points. We establish these constraints using the Bern...

Global convergence and the Powell singular function

The Powell singular function was introduced 1962 by M.J.D. Powell as an unconstrained optimization problem. The function is also used as nonlinear least squares problem and system of nonlinear equations. The function is a classic test function included in collections of test problems in optimization as well as an example problem in text books. In the global optimization literature the function ...

Convergence Properties of Beale - Powell

The Beale-Powell restart algorithm is highly useful for large-scale unconstrained optimization. In this paper, we use an example to show that the algorithm may fail to converge. The global convergence of a slightly modiied algorithm is proved.