Page 276 - Buku Aljabar Linear & Matriks

% mencari determinan matriks A
» det (A)

ans =

27

% mencari invers matriks A

» inv (A)
ans =
-1.7778 0.8889 -0.1111
1.5556 -0.7778 0.2222
-0.1111 0.2222 -0.1111

% mencari transpose matriks A
» transpose (A)

ans =
1 4 7
2 5 8
3 6 0

% membuat matriks konstanta B ( A.X = B )

» B = [366 ; 804 ; 351]
B =
366
804
351

% menghitung X = A . B
-1
» X = inv (A) * B
X =
25.0000
22.0000
99.0000

267 | K o m p u t a s i d e n g a n M A T L A B