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2) A: ıı x nı ve rank(A) = m , yani A n ın sütun vektörleri lineer ba ğıms ız (A<br />

tam sütun rankb) ise,<br />

61<br />

A + = (A' A) ' A'<br />

d ır. A + matrisi A n ın sol inversidir.<br />

3) A: ıı x in ve rank(A)= n, yani A tam sat ır rankl ı ise,<br />

A+ = A'(A' A)<br />

d ır. A + matrisi A n ın sağ inversidir.<br />

4) A:1 x ı tipinde bir matris, yani A = [a],a ER ise,<br />

[O] ,a = O<br />

A + = lim (A' A + 521)-1 A' = [ 1<br />

(5-->0 --1 ,a O<br />

d ır. a ER reel say ı s ı için,<br />

olarak tammlans ın.<br />

{O ,a = O<br />

a + = 1<br />

— ,a O<br />

a<br />

5) A kö şegen matris yani,<br />

A =<br />

d, 0 -• •<br />

0 d, • • • 0<br />

ise,<br />

0 0 ••• d„_

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