馬糞證券 => 電訊台: do you know A(A^tA)^-1A^t is the projection matrix to the column space of A? #60083b9491664787a4eae233

馬糞證券 says to 電訊台

do you know A(A^tA)^-1A^t is the projection matrix to the column space of A?

at Wed, Jan 20, 2021 10:17 PM