A library that we use is GLM (OpenGL Mathematics http://glm.g-truc.net/).  We 
have found this library to be very efficient and it is only header files.

Keith Gardner
Software Engineer
Zebra Imaging
9801 Metric Blvd., Suite 200
Austin, TX 78758
Office: 512-583-0677

On Sep 5, 2011, at 3:35 PM, Konstantin Tokarev wrote:

05.09.2011, 21:41, "Tom Cooksey" 
<[email protected]<mailto:[email protected]>>:
While on the subject, it would be great if QVector* and QMatrix* internal 
formats could be made to map to NEON intrinsic built-ins too so operations 
could be implemented with vectorized instructions. I guess that would also 
apply to SIMD on other processor architectures too...

You can use Eigen. It supports NEON, SSE[2-4], and Altivec vectorization

--
Regards,
Konstantin
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