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Cours 4: Existence de solution Condition nécessaire ... - Enseeiht

Cours 4: Existence de solution Condition nécessaire ... - Enseeiht

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Solution<br />

Plan<br />

Dérivée secon<strong>de</strong> et convexité<br />

<strong>Existence</strong> <strong>de</strong> <strong>solution</strong><br />

<strong>Condition</strong> nécessaire, condition suffisante<br />

Algorithmes<br />

algorithme <strong>de</strong> Newton<br />

Problème <strong>de</strong> datation du Carbone 14<br />

Algorithme <strong>de</strong> Gauss-Newton<br />

Modèle <strong>de</strong> Kaplan<br />

250<br />

y 1<br />

(t)<br />

200<br />

150<br />

100<br />

50<br />

← r 1<br />

← r 2<br />

← r<br />

←<br />

3<br />

r4<br />

← r<br />

←<br />

5<br />

r6<br />

← r ← 7r8←<br />

r9<br />

← r 10 ← r11 ← r 12<br />

0<br />

0 5 10 15 20 25 30 35 40 45 50<br />

t<br />

80<br />

60<br />

y 2<br />

(t)<br />

40<br />

20<br />

0<br />

0 5 10 15 20 25 30 35 40 45 50<br />

t<br />

Fig.: Données, courbe pour β = (0.5,0.55,0.5,240) et résidus<br />

<strong>Cours</strong> 4 34/ 34

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