Yes, Ben. That's exactly what I needed.

As it turns out I meant addition table, not times, but that just means
changing the * to +. I was inspired by Linda's addition tables (for first
graders that I have been working with), but I could not properly appreciate
the purpose of the colors relative to the underlying numeric magnitudes. In
retrospect, I can see the parallel anti-diagonals in the RGB palettes
better, but not the continuity in the main diagonal, like I can see in the
greyscale.

Thanks,


On Tue, Nov 11, 2014 at 8:46 AM, Ben Gorte - CITG <[email protected]>
wrote:

> Try:
>
> grey =: 3 : '(256 3 $ 3#i.256) viewmat y'
> grey */~i. 13
>
> (it works)
>
> Ben
>
-- 
(B=)
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