UKFAndEKFNLSpring:

Path: Common/GeneralEstimation

% Simulate a UKF and EKF with a nonlinear spring example.

 Things to try:
   1. Change the noise numbers.
   2. Make the spring constant different for the spring and estimator.

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  See also: KFInitialize, RHSUKF, UKFWeight, RK4, GXUKF, UKFPredict, UKFUpdate,
  Plot2D, EKFPredict, EKFUpdate, FXNLSpring

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