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Note on the Geometry of two Binary quadratics in the complex plane

Published online by Cambridge University Press:  20 January 2009

W. Saddler
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If

represent the points A, B and C, D respectively and if

then A, B, C, D are four harmonic points on a circle. If 0 is the mid point of AB then OA2 = OC. OD and ∠COB = ∠DOB.

Type
Research Article
Information
Proceedings of the Edinburgh Mathematical Society , Volume 42 , February 1923 , pp. 81 - 83
Copyright
Copyright © Edinburgh Mathematical Society 1923

References

§§ Grace, and young, , Algebra of Invariants, pages 209, 210Google Scholar.

* Proceedings Edin. Math. Society, Vol. 42, Pt. I.