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Rešavanje linearnog sistema jednaĉina<br />
• Sistem A·x=b ima rešenje x=A -1 ·b<br />
– u <strong>Matlab</strong>-u: x = A\b<br />
• Sistem x·A=b ima rešenje x=b/A<br />
– u <strong>Matlab</strong>-u: x = b/A<br />
• Primer:<br />
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1<br />
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» A = [1 2 -1; -1 3 2; -1 -1 1];<br />
» b = [-2.5; 0.5; 1.5];<br />
» x = A\b<br />
x =<br />
2.5000<br />
-1.0000<br />
3.0000<br />
» A*x<br />
ans =<br />
-2.5000<br />
0.5000<br />
1.5000<br />
» x = inv(A)*b<br />
x =<br />
2.5000<br />
-1.0000<br />
3.0000
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