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Obras sobre Mathematica. By Dr. F Gomes Teixeira. Published by the order of the Portuguese Government. Vols. I. and IV (University of Coimbra.) Pp. 391, 402. 1904 and 1908.
Published online by Cambridge University Press: 03 November 2016
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- Copyright © Mathematical Association 1908
References
* Toroids.
† How necessary such work is may be inferred from a passage in Vol. I. “These curves have been investigated by Petersen, who calls them ‘curves of constant power’; by Humbert, who names them ‘cyclic curves’; and by d’Ocagne, in whose hands they become ‘isotropic curves.’ ”