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- Question about a normal equation proof 3 answers
I am trying to derive ELM going through the basics , please help me out here :
$$f = x^Tx$$ $$g = Ax-b $$
The constraint is $Ax-b = 0$
I calculated $J' = f'+\lambda^T g'$ which is $2x+(\lambda^T A)^T = 0 $ and $Ax-b=0$ . I dont know what to do next please help me out .