NA Digest Sunday, February 10, 2002 Volume 02 : Issue 06 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Subscribe, unsubscripe, change address, or for na-digest archives: http://www.netlib.org/na-net Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information via e-mail about NA-NET: Mail to na.help@na-net.ornl.gov. ------------------------------ From: Deal Date: Fri, 8 Feb 2002 14:25:11 +0100 (MET) Subject: Object-Oriented Finite Element Library Version 3.3 of the deal.II object-oriented finite element library has been released. It is available from the deal.II home-page at http://gaia.iwr.uni-heidelberg.de/~deal The most important improvements compared to the previous version are: - Support for the graphical file formats used by Tecplot and OpenDX. - An example program demonstrating the Discontinuous Galerkin Finite Element Method (DGFEM). - Support for subdomains, thus simplifying the creation of programs that run on clusters of computers. Beside these, the list of changes comprises more than 50 new functions, classes, and bug fixes. A concise list with respect to the previous version can be found at http://gaia.iwr.uni-heidelberg.de/~deal/news/2002/3.2.0-vs-3.3.0.html All main features of the previous versions have been continued and improved: - Support for dimension-independent programming - Extensive documentation and working example programs - Locally refined grids - Continuous and discontinuous elements of higher order - Fast linear algebra - Built-in support for symmetric multi-processing (SMP) - Output for a variety of visualization platforms. deal.II can be downloaded for free and is distributed under an Open Source license. Wolfgang Bangerth, Ralf Hartmann, Guido Kanschat, the deal.II team ------------------------------ From: Richard Brent Date: Fri, 8 Feb 2002 17:21:02 GMT Subject: Reprinted Book, Algorithms for Minimization My book "Algorithms for Minimization without Derivatives" (Prentice-Hall, 1973), which has been out of print for many years, has just been republished by Dover (paperback, $9.95), ISBN 0-486-41998-3 The book describes and analyzes some practical methods for finding approximate zeros and minima of functions, using only function (not derivative) evaluations. Contents include algorithms with guaranteed convergence for finding a zero of a function of one variable, a local minimum of a function of one variable, and a global minimum given an upper bound on the second derivative. Despite progress since 1973, much of the book is still relevant. For more information, including the Preface to the Dover edition, see http://web.comlab.ox.ac.uk/oucl/work/richard.brent/pub/pub011.html Richard Brent ------------------------------ From: Deal Date: Thu, 6 Jun 2002 10:11:41 +0200 (MEST) Subject: Deal, Object-oriented Finite Element Library Version 3.4 of the deal.II object-oriented finite element library has been released. It is available from the deal.II home-page at http://www.dealii.org The most important changes compared to the previous version are: - A new homepage address at www.dealii.org - Two more example programs, explaining modern error estimation techniques and showing software design methods allowing for modular and extensible programs - Improved multi-threading supports using POSIX - Improved ISO C++ Standard conformance - Support for TECPLOT binary format and grid output in DX format - Three functions have been deprecated, and will be removed in the next version. A complete list of changes with respect to the previous version can be found at http://www.dealii.org/news/2002/3.3.0-vs-3.4.0.html All main features of the previous versions have been continued and improved: - Support for dimension-independent programming - Extensive documentation and working example programs - Locally refined grids - Continuous and discontinuous elements of higher order - Fast linear algebra - Built-in support for symmetric multi-processing (SMP) - Output for a variety of visualization platforms. deal.II can be downloaded for free and is distributed under an Open Source license. Wolfgang Bangerth, Ralf Hartmann, Guido Kanschat, the deal.II team ------------------------------