Dennis Lee Bieber  writes:

> On Thu, 15 Feb 2018 20:24:12 +0000, Gareth's Downstairs Computer
>  declaimed the following:
>
>>Also, is there any info on how to use the graphics controller
>>as a maths engine?
>>
>
>  To my knowledge, Broadcom has not released very much information about
> the GPU. Consider that the initial booting of an RPi is done by loading a
> certain file into the GPU, and that file than loads/starts the ARM
> processor.

Well, there's this:

http://www.aholme.co.uk/GPU_FFT/Main.htm

--- which is interesting by itself, and also has links to other documents.

--- SoupGate-Win32 v1.05