Example 3. Compare
the "discrete least squares approximation" and "continuous least
squares approximation," on the interval .
3 (a). Use the function .
Solution 3 (a).
We are done.
Let us investigate the linear system involved in this example.
We are really done.
Aside. We can calculate the coefficients by directly setting up the matrix vector . This is just for fun !
This is the same as we obtained previously.
(c) John H. Mathews 2005