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“Margarita” graph Margarita  (zoom in)
This graph adorns the front cover of the GrafEq 2.02 manual. It shows seven spirals trying to live within a “square” grid. Two colours were used because of the impending two colour printing process for the manual cover. The red component emphasizes the graph’s spiral nature.
inequality for black portion of “Margarita” graph

inequality for red portion of “Margarita” graph