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Leon Bankoff (December 13, 1908 – February 16, 1997) was an American dentist and mathematician born in New York City, New York. He attended the City College of New York and dental school at New York University before relocating to Los Angeles, California, where he studied at the University of Southern California. Starting in the 1940s he began to publish regularly in various mathematics journals, including the Pi Mu Epsilon Journal, for which he acted as Problems Editor from 1968 to 1981. His interests included problems in plane geometry, particularly Morley's trisector theorem and the arbelos of Archimedes. Among his discoveries was the Bankoff circle which is equal in area to Archimedes' twin circles.

Publications

• How Did Pappus Do It? The Mathematical Gardner, David Klarner ed. (Pridle, Weber & Schmidt, 1981).
• The Metamorphosis of the Butterfly Theorem, Mathematics Magazine, Mathematical Association of America, October 1987.
• "The Asymmetric Propeller," (with Paul Erdős and Murray S. Klamkin) Mathematics Magazine, 46 (1973), 270-272.

References

1. Mathematics Magazine vol. 47 (1974) pp. 214–218

• American mathematicians
• 20th century mathematicians
• 1908 births
• 1997 deaths