min 3, but more would be better. The max/min point is a must and a couple of points to the left and right of it.
3
The minimum is two points, one point at each end of the line.
3
Two. Two points determine a line. Three points determine a plane.
A minimum of 6 sets of data are needed to make a valid conclusion.
The minimum number of points required to geo-reference an object typically depends on the complexity of the object's shape and the desired accuracy. For a simple object, at least three non-collinear points are necessary to establish a coordinate system in two dimensions. In three dimensions, a minimum of four non-coplanar points is needed to accurately define the object's position. However, more points can improve accuracy and reliability.
3
In Euclidean geometry each line contains a minimum of an infinite number of points. In projective geometry, though, a line may have as few as two points.
3
There can be no minimum number - it is simply not possible. Given any n points in 3-dimensional space, it is possible to find a polynomial that will generate a curve going through each of those points. There are other functions which will also do the trick. So, given any number of points, it would be impossible to determine whether they were generated by a fractal or a polynomial (or other function).
There is no minimum number - it is simply not possible. Given any n points in 2-dimensional space, it is possible to find a polynomial of order (n-1) that will generate a curve going through each of those points. There are other functions which will also do the trick. So, given any number of points, it would be impossible to determine whether they were generated by a fractal or a polynomial (or other function).
2 points