Kegelschnitte und Reflexionen
DOI:
https://doi.org/10.18716/ojs/md/2005.1052Abstract
Parabolas are the only curves with the property that parallel rays are reflected into a fixed point. Ellipses are the only curves with the property that rays through one fixed point are reflected into another fixed point.
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Published
2005-01-01
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Freie Beiträge
How to Cite
Kegelschnitte und Reflexionen. (2005). Mathematica Didactica, 28(1), 98-110. https://doi.org/10.18716/ojs/md/2005.1052