Sircar, Swati
(2015)
Of paper folding, geogebra and conics.
At Right Angles, 4 (2).
pp. 48-52.
Abstract
The conics include circle, ellipse, parabola, hyperbola and a pair
of intersecting lines. The first and the last can be readily drawn
on paper, but there are no constructions for the remaining three
using compasses and straight edge. If one has to befriend (i.e., learn about,
understand and ultimately develop some intuition based on practical
knowledge) a shape, it is important to work with that shape. Paper folding
(to be described presently) provided one such way to generate the three
remaining conics on paper without much difficulty.
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