Le 19/10/2018 à 18:16, HJH [via Dr. Geo Forum] a écrit :
> Yes, #altIntersection:with: works.
>
> But I wonder why #intersection:with: does not catch the point 5@0.
>
> The origin of the ray is 0@0 and then it goes through 5@0.
>
> --Hannes
It is because it is a two roots equation.
When writing a script, you don't know in advance which solution you are
interested by.
From the user interface, with the mouse you show Dr. Geo the
intersection point you want, so it can guess which intersection point
you want from the two roots equation.
Hope it clarify.
Hilaire
Was this message helpful?
Tell us!