放物線の描き方についての質問

seiichikirikami shared this question 2 years ago
Answered

メンバーの皆様、

小生、退職者にて日立市に住んでおります。よろしくお願いいたします。

Geogebraには、準線と焦点にて、放物線をえがくマクロが既に備わっています。

任意の平面上の4点にて一つの放物線が決まると思いますが、4点を通る放物線の描き方が、わかれば教えていただきたく、よろしくお願いいたします。

桐上清一、日立市。

Comments (3)

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FitPoly[{A, B, C, D}, 2]

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Dear qvisty,

Thanks a lot ! I did not expect a bit that the answer came outside Japan.

Best regards, Seiichi.

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You are welcome. I had to use google translate and was still a bit in doubt whether you went exactly that. :) I tried to translate my answer back to japanese but half the words were not translated.


Glad it helped. :)

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