Properties
Category
English
Similar Topics
Statistics
Comments
12
Participants
3
Subscribers
0
Votes
1
Views
3690
Share
tangent to ellipse
Completed
I need in my geometrical optics construction to build tangents to ellipses, would it be possible to extend accordingly the functionality of GeoGebra? A tangent to an ellipse through a point, and tangents to two ellipses?
Thank you for the very useful software!
Jaan
 GeoGebra
 Help
 Partners

Contact us
 Feedback & Questions
 This email address is being protected from spambots. You need JavaScript enabled to view it.
 +43 677 6137 2693
© 2023 International GeoGebra Institute
https://www.geogebra.org/m/Yr9Jfinu
Thanks (when I first tried, it didn't work for some reason)! Though, I'd need also tangents to a pair of ellipses and preferably also tangents to ellipse with a fixed direction (e.g. perpendicular to a line). More specifically, the task is here: http://www.ioc.ee/~kalda/ip....
I think this command is the first step to doing that
https://wiki.geogebra.org/e...
Maybe a better method: rotate the ellipse and find the bounding box:
https://math.stackexchange....
https://www.geogebra.org/m/uxAeCJFx
https://math.stackexchange....
Not sure what the answer means exactly though
https://www.geogebra.org/m/Yr9Jfinu
you can to move the points or download the applet and redefine the conics with an algebraic expressions in the algebra window
You can make a tool from mathmagic's file, see attached. Then you get a new command:
Comments have been locked on this page!