Topic: Please help!

I want to draw a point where two relations with an animated variable intersect, but I don't know how

Re: Please help!

Approximate methods:

If R1 = { (x,y) | f(x,y) = 0 } and R2 = { (x,y) | g(x,y) = 0 },

then

  (R1 and R2) ~ { (x,y) | abs(f(x,y)) < d and abs(g(x,y)) < d }

or

  (R1 and R2) ~ { (x,y) | f(x,y)^2 + g(x,y)^2 < d^2 },

where d is a small positive number.

Post's attachments

Attachment icon Points of Intersection.grf 3.67 kb, 463 downloads since 2014-10-30 

Re: Please help!

Thank you!