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- Xref: sparky sci.math.num-analysis:3952 comp.lang.c++:19822
- Newsgroups: sci.math.num-analysis,comp.lang.c++
- Path: sparky!uunet!munnari.oz.au!comp.vuw.ac.nz!kauri.vuw.ac.nz!robertd
- From: robertd@kauri.vuw.ac.nz (Robert Davies)
- Subject: newmat07: a matrix package in C++
- Nntp-Posting-Host: kauri.vuw.ac.nz
- Message-ID: <C1CqJB.G7F@comp.vuw.ac.nz>
- Organization: Victoria University of Wellington
- Sender: news@comp.vuw.ac.nz (News Admin)
- Date: Sun, 24 Jan 1993 09:33:10 GMT
- Lines: 53
-
- Newmat07
-
- I have released a new version of my matrix package in C++. This version
- is called newmat07. This is largely a "maintenance" upgrade from
- newmat06. You should upgrade.
-
- There are some comments on its use with Gnu g++ at the end of this note.
-
- The package supports classes Matrix, UpperTriangularMatrix,
- LowerTriangularMatrix, DiagonalMatrix, SymmetricMatrix, BandMatrix,
- UpperBandMatrix, LowerBandMatrix, SymmetricBandMatrix, RowVector,
- ColumnVector.
-
- Only one element type (float or double) is supported.
-
- The package includes the operations *, +, -, inverse, transpose,
- conversion between types, submatrix, determinant, Cholesky
- decomposition, Householder triangularisation, singular value
- decomposition, symmetric eigenvalue analysis, fast Fourier transform,
- sort, print, an interface to "Numerical Recipes in C" programs, and an
- emulation of exceptions.
-
- It is suitable for matrices in the size range 15 by 15 up to the maximum
- size that can conveniently be stored in a single block of memory. It can
- be used with smaller matrices, but becomes less efficient.
-
- The package works with AT&T C++ (versions 2.1 and 3), Gnu G++ (version
- 2.2), Borland C++ (version 3.1), Microsoft C++ (7.0), and mostly with
- Zortech (version 3.04).
-
- It is available on Simtel20 (192.88.110.20) in the pd1:<msdos.cplusplus>
- directory in .zip format, and on the archives of comp.sources.misc,
- volume 34 issues 107 to 114 (shar format). Look for it on
- wuarchive.wustl.edu (128.252.135.4). It is also on Compuserve in the
- Borland forum.
-
-
- The package works under Gnu G++, version 2.2.2. There are a couple of
- problems under the 2.3.x series.
-
- There is an inline function Rectangular defined as part of class
- MatrixType in file newmat.h. Gnu 2.3.x is unable to compile this inline.
- This leads to an erroneous compilation in 2.3.1 and 2.3.2 and lots of
- warning messages in 2.3.3. The solution is to move the body of the
- function to one of the cxx files.
-
- The ReturnMatrix code does not work with versions 2.3.1 and 2.3.2. As a
- result Cholesky also does not work. There is a work-around, but I would
- really encourage you to upgrade to 2.3.3.
-
-
- Robert (robertd@kauri.vuw.ac.nz)
-
-