- #1
unscientific
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Homework Statement
From step 1 to step 2, what do they mean by "Taking the weighted sum of the two squares " ?
I tried and expanded everything in step 2 and it ends up as the same as step 1 (as expected),
The Attempt at a Solution
I tried looking up "weighted sum" and " weighted sum of squares", I think the more closely related one is here: http://en.wikipedia.org/wiki/Lack-of-fit_sum_of_squares
I read it and tried to understand it but it looks as if what they are describing has no relation to what's in the book..