Hi, when trying to compute the intersection points of 2 circles i got strange results.
Example 1: c1(x,y)=(x-5)^2+y^2-25; c2(x,y)=(y-3)^2+x^2-9 solve([c1(x,y)==0,c2(x,y)==0],x,y) produces the expected result: [[x == (45/17), y == (75/17)], [x == 0, y == 0]] Example 2: (circle 1 smaller) c1(x,y)=(x-5)^2+y^2-16; c2(x,y)=(y-3)^2+x^2-9 solve([c1(x,y)==0,c2(x,y)==0],x,y) produces the unexpected result: [] whereas intersection points do exist, e.g. x=(-9(sqrt(55)-15)/68, y=(-3(sqrt(55)-41)/68 Is it because Example 1 has a rational result, whereas Examples 2 has an irrational one? Thanks for any help. Markus -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
