vecLib framework sample code
vecLib framework sample code
- Subject: vecLib framework sample code
- From: Jim Jaeger <email@hidden>
- Date: Tue, 4 Mar 2003 00:25:37 -0800
I've spent some time designing an application around matrix processing
to get the increased speed of the G4's vector processor. Now I need to
learn how to use the vecLib framework to perform matrix inversion and
multiplication.
I have worked through Hillegas, I've read the book and done all the
exercises in Garfinkle and Mahoney, and I'm half way through Anguish
et.al. (I gave up on the first edition of _Learning_Cocoa_ at page
147). I have searched the Apple Developer web site for a simple
tutorial on how to use vecLib for simple multiplication and inversion.
Nothing tells me what I want to know.
So far, I think I have learned that cblas_sgemm() will multiply two
matrices for me, but I can find nothing that looks like it will do an
inversion. The documentation I've been able to uncover is anything but
clear. The header files I've found list the functions and parameters,
but the naming conventions carefully hide the purpose of the functions
[who would guess that cblas_sgemm() is a multiplication routine?].
Tomorrow, I'll try again to read the BLAS report to see if I can learn
how to read the function names.
Can someone point me to a source of information on vecLib suitable for
beginners at Cocoa and Obj-C? All I need to do is a few simple matrix
multiplications and inversions for matrices up to 10x10, single
precision.
jim
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