fitting an ellipse (Gauss-Newton method)

Please specify the two half axes a and b:
Attention : a and b > 0 and of similar magnitude, at least
a >= 0.001*b and b >= 0.001*a !
a = b =

Please specify the rotation angle (in degrees):

rotation angle α =

The coordinates of the center of the (shifted) ellipse are:

x-coordinate=

y-coordinate=

Interval for the generation of random values for the parameter φ (in degrees):
If this interval is to narrow then the computation will surely fail (you will see a blank plot or some other nonsense).

Lower bound for φ =

Upper bound for φ =

The number N of points ( 5 < = N <= 50).

N =

The maximum value of perturbation of a coordinate is:

δ =	Important: δ <= sqrt(a**2+b**2) !

You want to specify the initial guess yourself?

Yes	Please specify the center coordinates (shift of origin): z1 = z2 = and here the data for the (rotated) ellipse: a11 = β3 = a12, a21 = β4/2= a22 = β5 =
No

Warning!!! - This may take some time.

Click on "evaluate", in order to submit your input.