News
Bugfix update and a new goodie: A simple non linear fitting class
For all out there who are using the matrix scaling operations (AddAndScale and such) - please update as soon as possible. There has been a nasty copy paste bug in these routines when it came to scaling and
large matrices.
A new goodie was introduced within the latest update as well - there exists now a simple class for non linear fitting. Simple because it only estimates the derivatives from the data but anyway it's worth to try!
New PCA class and faster Matrix multiplication
I'm proud to announce an update to the Delphi Matrix library available on this page. The update includes a speedup in the common matrix multiplication using techniques used in the current BLAS 3 implementations. For all people who do Image processing I also uploaded a Principal Component Analysis (PCA) class, an algorithm widly used as in many algorithms either as preprocessing step or for compression. In contrast to common PCA implementations my algorithm features a fast robust algorithm which includes a fast outlier detection. Have fun!
New Download page available
Hey Delphi Matrix fans - the Matrix library has a second home on google code:
http://code.google.com/p/mrmath
New Delphi website
This is a new Delphi site which shows the work I've done over the last time. So I decided to share them and release them under an open source licence. In the download section you will find a matrix library including some advanced operations like singular value or LU decomposition, pseudo inversion and others as well as a large set of assembler hand optimized matrix primitive functions. The assembler version are available for x64 code as well by the way. Quite a few of these matrix primitives are also available as multi threaded versions. All functions are encapsulated in an easy to handle matrix class (or interface).
The library is released under the apache licence meaning that it may also be integrated into commercial products.
Update: There was a bug in the 64 pointer arithmetic in some of the matrix class methods.