06.08.2013 Views

Web skærmformat. - Aarhus Universitet

Web skærmformat. - Aarhus Universitet

Web skærmformat. - Aarhus Universitet

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

V. Matricer – 1. Vektorer og matricer 371<br />

a<br />

b + c<br />

b<br />

a + b<br />

a + b + c<br />

Associativ lov for vektorer i planen<br />

1.9. Linearkombination ☞ [LA] 1 Koordinatvektorer<br />

Definition<br />

Et sæt af vektorer u1,...,uk og koefficienter (skalarer) λ1,...,λk giver linearkombinationen<br />

Eksempel<br />

λ1u1 + · · · + λkuk<br />

⎛ ⎞<br />

1<br />

⎛ ⎞<br />

1<br />

⎛ ⎞<br />

4<br />

⎛ ⎞<br />

−5<br />

0⎝5⎠<br />

+ 3⎝2⎠<br />

− 2⎝5⎠<br />

= ⎝−4⎠<br />

7 3 6 −3<br />

c

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!