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Web skærmformat. - Aarhus Universitet

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IV. Differentialligninger – 3. Generelle metoder 349<br />

er de trigonometriske funktioner<br />

y1(x) = cos x<br />

y2(x) = sinx<br />

3.8. Grafisk løsning ☞ [S] 7.2 Direction fields. . . ; [LA] 17 Generel ligning<br />

Eksempel 1 - Retningsfelt<br />

dy<br />

dx = x3 y + e xy<br />

y<br />

1<br />

0 1<br />

3.9. Logistisk ligning grafisk ☞ [S] 7.5 The logistic equation<br />

Eksempel<br />

x

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