Properties
Category
English
Similar Topics
Statistics
Comments
6
Participants
6
Subscribers
0
Votes
1
Views
1042
Share
How to intersect a Curve and a Line?
Answered
Hello,
Please see the attached file.
I am unable to intersect the rotated Curve 'aa' and the Line 'e'. :( I would like Points to be available at the intersections.
Can it be done?
Thanks,
Swulf
 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
© 2021 International GeoGebra Institute
Hi
The curve command doesn't create an object which has an "intersection property" with another curve or equation. You might have to work out the intersection points yourself and put them on separately.
You could move this request to the GeoGebra forum proper for other ideas.
Why there are two forums I don't know..
regards
Paul
Hi,
It's a shame that feature is not supported as it seems very useful and necessary.
Swulf
Hi Swulf,
As a workaround try creating a point with these coordinates:
(0,sin(rotation°) r(pi/2rotation°) cos(pi/2rotation°) +cos(rotation°) r(pi/2rotation°) sin(pi/2rotation°))
It will move up and down with the rotating curve.
M_OLoughlin
Hi
One workaround more in the annex
Raymond
https://ggbm.at/553235
hello
Your request is equivalent to solving any system of equations. i think this is not possible.
in this case you can use
aa=Curva[r(t) cos(t + rotation°), r(t) sin(t + rotation°), t, 0, 6.28319]
C=(0, r(90°  rotation°))
it is similar Raymon's method but shorter (you can delete "a" or modify r(x) )
saludos
Intersect[ <Line>, <Curve> ] works from 4.1.108.0
Comments have been locked on this page!