Robby Findler 8c9088a770 changed the overlaying functions so they default to putting the images overlay'd on their centers, not upper lefts ... svn: r17632		2010-01-13 16:32:21 +00:00
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scribblings	changed the overlaying functions so they default to putting the images overlay'd on their centers, not upper lefts	2010-01-13 16:32:21 +00:00
batch-io.ss	forgot to add this	2009-04-14 14:33:58 +00:00
universe.ss	added universe via a 2htdp teachpack	2009-01-03 02:38:09 +00:00