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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

Showing all 4 results
Brocard Point and Euler Function
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Sastry, K. R. S. – Mathematics and Computer Education, 2007
This paper takes a known point from Brocard geometry, a known result from the geometry of the equilateral triangle, and bring in Euler's [empty set] function. It then demonstrates how to obtain new Brocard Geometric number theory results from them. Furthermore, this paper aims to determine a [triangle]ABC whose Crelle-Brocard Point [omega]…
Descriptors: Geometric Concepts, Number Concepts, Geometry, Theories
A Description of a Family of Heron Quadrilaterals
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Sastry, K. R. S. – Mathematics and Computer Education, 2005
Mathematical historians place Heron in the first century. Right-angled triangles with integer sides and area had been determined before Heron, but he discovered such a "non" right-angled triangle, viz 13, 14, 15; 84. In view of this, triangles with integer sides and area are named "Heron triangles." The Indian mathematician Brahmagupta, born in…
Descriptors: Professional Personnel, Numbers, Geometric Concepts, Geometry
Sums of Integer Squares: A New Look.
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Sastry, K. R. S.; Pranesachar, C. R.; Venkatachala, B. J. – Mathematics and Computer Education, 1998
Focuses on the study of the sum of two integer squares, neither of which is zero square. Develops some new interesting and nonstandard ideas that can be put to use in number theory class, mathematics club meetings, or popular lectures. (ASK)
Descriptors: College Mathematics, Higher Education, Mathematical Concepts, Mathematics Instruction
A Pretty Idea.
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Sastry, K. R. S. – Mathematics and Computer Education, 1998
Proposes that a mathematical treatment of Strong Inequality Triangles (sum of any two sides is greater than the third) within the reach of high school and college students is possible. Invites further explorations of other properties of Strong Inequality Triangles. (ASK)
Descriptors: High Schools, Higher Education, Mathematics Activities, Mathematics Education