UIHistories Project: A History of the University of Illinois by Kalev Leetaru
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Repository: UIHistories Project: Mathematical Models by Arnold Emch - Series 4 (1928) [PAGE 20]

Caption: Mathematical Models by Arnold Emch - Series 4 (1928)
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IV Series 35. Self Dualistic Cuspidal Cubics.

21

To the cubic C3 with cusp K'(f) at K and inflexion I (<p) at I corresponds in the polar correlation, with respect to the circle C (center 0), the cubic r3 with inflexion k (F) corresponding to the cusp K (/), and the cusp i ( j ) corresponding to the inflexion I (<p), <> Fig. 12.

Fig. 12