Bounded variation and differentiability of functions.
Antonio Córdoba (1975)
Collectanea Mathematica
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Antonio Córdoba (1975)
Collectanea Mathematica
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L. Young (1948)
Fundamenta Mathematicae
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Duncan J. Melville (2005)
Revue d'histoire des mathématiques
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There was a standard procedure in Mesopotamia for solving quadratic problems involving lengths and areas of squares. In this paper, we show, by means of an example from Susa, how area constants were used to reduce problems involving other geometrical figures to the standard form.
Henry Blumberg (1939)
Fundamenta Mathematicae
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Nagamochi, Hiroshi (2005)
The Electronic Journal of Combinatorics [electronic only]
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Judita Cofman (1998)
The Teaching of Mathematics
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M. O. González (1976)
Gaceta Matemática
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Albert Dou (1992)
Publicacions Matemàtiques
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This "Corolarium" of the (1733) contains an original proof of propositions 1.27 and 1.28 of Euclide's . In the same corollary Saccheri explains why he dispenses "not only with the propositions 1.27 and 1.28, but also with the very propositions 1.16 and 1.17, except when it is clearly dealt with a triangle circumscribed by alls sides"; and also why he rejects Euclide's proof. Moreover the corollarium has implications for confirmation of Saccheri's method; and also for his concept of...
Cohn, Henry, Larsen, Michael, Propp, James (1998)
The New York Journal of Mathematics [electronic only]
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A. Besicovitch (1935)
Fundamenta Mathematicae
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Tuzson Zoltán (2013)
The Teaching of Mathematics
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