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Web skærmformat. - Aarhus Universitet

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V. Matricer – 2. Lineære afbildninger 394<br />

og k = 0,1,2,... er potensen<br />

Λ k =<br />

⎛<br />

⎜<br />

⎝<br />

λ k 1 0 ...<br />

0<br />

. .. 0<br />

. 0 λ k n<br />

2.17. Matrix potens ☞ [LA] 2 Matricer<br />

Opgave<br />

Beregn matrix potensen<br />

<br />

1<br />

k a<br />

0 1<br />

Løsning<br />

Bemærk <br />

1<br />

0<br />

<br />

x 1<br />

1 0<br />

<br />

y 1<br />

=<br />

1 0<br />

<br />

x + y<br />

1<br />

Heraf <br />

1<br />

0<br />

k <br />

a 1<br />

=<br />

1 0<br />

<br />

ka<br />

1<br />

2.18. Ligninger på matrix form ☞ [LA] 5 Lineære ligningssystemer<br />

Definition<br />

⎞<br />

⎟<br />

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