File:01-Ellipsenzirkel-van Schooten-1.gif

Summary[edit]

Anmerkung[edit]

• Damit der Ellipsenzirkel eine komplette Ellipsenlinie zeichnen kann (auch durch die Scheitelpunkte ${\displaystyle S_{1}}$ und ${\displaystyle S_{2}}$), ist es erforderlich, dass zumindest einmal die Einstechposition der Zirkelnadeln in den Brennpunkten der Ellipse ${\displaystyle F_{1}}$ und ${\displaystyle F_{2}}$ getauscht wird. In der Animation wurde dies ein­fach­heits­hal­ber nicht berücksichtigt!

Note[edit]

• So that the trammel can draw a complete ellipse line (also by vertexes ${\displaystyle S_{1}}$ and ${\displaystyle S_{2}}$), it is necessary that the puncture position of the circular needles at least once in the focal points of the ellipse ${\displaystyle F_{1}}$ and ${\displaystyle F_{2}}$ is exchanged. For the sake of simplicity, this was not taken into account in the animation!

Assessment[edit]

This file was selected as the media of the day for 20 April 2020. It was captioned as follows: English: Ellipse trammel designed by Frans van Schooten. Other languages Čeština: Nástroj pro konstrukci (narýsování) elipsy, navržený matematikem Fransem van Schooten. English: Ellipse trammel designed by Frans van Schooten. Français : Trémail à Ellipse conçue par Frans van Schooten. Эрзянь: Ellipse-трамваесь, конань арсизеть Франс ван Шотен. Polski: Elipsograf, czyli cyrkiel do wykreślania elips zaprojektowany przez holenderskiego matematyka Fransa van Schootena. Українська: Еліпсограф, циркуль для побудови еліпсів, розроблений математиком Франсом ван Шотеном.

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