Scratches
Wednesday, April 27, 2011
11:40 AM
Scratches
A regular table is persistent until it is deleted. 
A scratch is a table that lasts only for one tick. 
Purpose: to compute partial results or to serve as a temporary table.
scratch :passing_clouds
passing_clouds <= [[3, "Nimbus"], [2, "Cumulonimbus"]]
Pasted from <[link]> 