Ana

Approximation Theory

Consider n+1 different points (x0,y0), (x1,y1),...,(xn,yn).
Calculate f(x) that bet fit the points.

Lagrange Interpolation
Lagrange polynomial interpolation in matlab


Newton Interpolation
Newton polynomial interpolation in matlab


Least-Squares Polynomial Approximation
Least-squares in matlab

Sites:
- Efstathiou: www.chem.uoa.gr/applets/AppletPoly/Appl_Poly2.html


Least Squares Approximation