![[Graphics:Images/LeastSqPolyMod_gr_38.gif]](../Images/LeastSqPolyMod_gr_38.gif){kind=small}
.Use Mathematica to find the "Least Square Quadratic", and find the RMS error.
Example 2. Find the
polynomial curve fit of degree = 2 for the points
.
Use Mathematica to find the "Least Square Quadratic", and find
the RMS
error.
Solution 2.
Plot the "Least Square Quadratic".
![[Graphics:../Images/LeastSqPolyMod_gr_39.gif]](../Images/LeastSqPolyMod_gr_39.gif)
![[Graphics:../Images/LeastSqPolyMod_gr_40.gif]](../Images/LeastSqPolyMod_gr_40.gif){kind=small}
![[Graphics:../Images/LeastSqPolyMod_gr_41.gif]](../Images/LeastSqPolyMod_gr_41.gif)
![[Graphics:../Images/LeastSqPolyMod_gr_42.gif]](../Images/LeastSqPolyMod_gr_42.gif){kind=small}
![[Graphics:../Images/LeastSqPolyMod_gr_43.gif]](../Images/LeastSqPolyMod_gr_43.gif){kind=small}
![[Graphics:../Images/LeastSqPolyMod_gr_44.gif]](../Images/LeastSqPolyMod_gr_44.gif){kind=small}
![[Graphics:../Images/LeastSqPolyMod_gr_45.gif]](../Images/LeastSqPolyMod_gr_45.gif){kind=small}
![[Graphics:../Images/LeastSqPolyMod_gr_46.gif]](../Images/LeastSqPolyMod_gr_46.gif){kind=small}
![[Graphics:../Images/LeastSqPolyMod_gr_47.gif]](../Images/LeastSqPolyMod_gr_47.gif)
![[Graphics:../Images/LeastSqPolyMod_gr_48.gif]](../Images/LeastSqPolyMod_gr_48.gif)
(c) John H. Mathews 2004
![[Graphics:../Images/LeastSqPolyMod_gr_49.gif]](../Images/LeastSqPolyMod_gr_49.gif){kind=small}
![[Graphics:../Images/LeastSqPolyMod_gr_50.gif]](../Images/LeastSqPolyMod_gr_50.gif){kind=small}
![[Graphics:../Images/LeastSqPolyMod_gr_51.gif]](../Images/LeastSqPolyMod_gr_51.gif){kind=small}