Detailed st_mapalgebra reference?

[Robert Burgholzer]

We are doing a ton of precip raster analysis and rectification, and we are
struggling to find details on the algebraic expressions that we can use,
ie, "[rast1] + [rast2]" is great if we are adding, but we are also
interested in boolean calculations etc.

The basic postgis reference page is great for understanding syntax but I am
looking for recipes or a large raster calculator reference.

Thanks on advance,
Robert

--
Robert W. Burgholzer
 'Making the simple complicated is commonplace; making the complicated
simple, awesomely simple, that's creativity.'  - Charles Mingus
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