Comment Comment by lucas-beyer No.As soon as you have 4 points, these 4 points uniquely define a cubic. Even if those 4 points are "right next" to eachother.If this is difficult to imagine, it is the same with a line. Wherever you place 2 points, they always uniquely define a single line.Unless, of course, you place 2 points exactly on top of eachother. parent lucas-beyer 14 years ago
As soon as you have 4 points, these 4 points uniquely define a cubic. Even if those 4 points are "right next" to eachother.
If this is difficult to imagine, it is the same with a line. Wherever you place 2 points, they always uniquely define a single line.
Unless, of course, you place 2 points exactly on top of eachother.