J. Phys. II France
Volume 7, Number 7, July 1997
Page(s) 1035 - 1044
DOI: 10.1051/jp2:1997169
J. Phys. II France 7 (1997) 1035-1044

Saddle, Tower and Helicoidal Surfaces

Michael Jacob

Laboratorium für Anorganische Chemie, ETH, Universitätstrasse 6, 8092 Zürich, Switzerland

(Received 20 January 1997, accepted 6 March 1997)

General analytical mathematical equations are given for n-fold saddle, tower saddle and helical tower saddle surfaces. The two-fold helical saddle tower is combined with the mathematics of the Exponential Scale to create a mathematical equation for the DNA-double helix with its bridging hydrogen bonds.

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