Lūi-pia̍t:Îⁿ-chui khiok-sòaⁿ
Tī "Îⁿ-chui khiok-sòaⁿ" chit ê lūi-pia̍t ê bûn-chiuⁿ
Ē-kha 3 ia̍h sio̍k tī chit ê lūi-pia̍t, lóng-chóng ū 3 ia̍h.
Tī Wikimedia Commons téng ê siong-koan tóng-àn: Conic sections |
Ē-kha 3 ia̍h sio̍k tī chit ê lūi-pia̍t, lóng-chóng ū 3 ia̍h.