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The equation of the folium of Descartes is: x3 + y3=3axy
fo·li·um (fl-m) KEY
pl. fo·li·a (-l-) KEY
- Geology A thin, leaflike layer or stratum occurring especially in metamorphic rock.
- Mathematics A plane cubic curve having a single loop, a node, and two ends asymptotic to the same line.
Latin, leaf; see bhel-3 in Indo-European roots