Tschirnhausen cubic
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The Tschirnhausen cubic, named after the mathematician Ehrenfried Walther von Tschirnhaus, is a plane curve which is defined by either of these formulae:
- y2 = x3 + 3x2
- a = rcos3(θ / 3).
[edit] References
- J. D. Lawrence, A Catalog of Special Plane Curves. New York: Dover, 1972, pp. 87-90.
[edit] External links
- http://math.colgate.edu/math111/dlantz/supps/x030601.html
- http://mathworld.wolfram.com/TschirnhausenCubic.html
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