Exercise Solution 2.16

Exercise Solution 2.16

Recall that, for nonsingular square matrices h and k

[s1]

Solution [2.103] for ordinary least squares assumes that columns of f are linearly independent. If m = l, then f is a nonsingular square matrix. Applying [s1] to solution [2.103], we obtain:

[s2]

which is solution [2.49] for ordinary interpolation.

 
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