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Analyse de sensibilité #218

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boisgera opened this issue Mar 21, 2021 · 0 comments
Open

Analyse de sensibilité #218

boisgera opened this issue Mar 21, 2021 · 0 comments

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@boisgera
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L'exemple du calcul des racines d'un polynôme d'ordre deux peut constituer un exercice intéressant, avec "catastrophic cancellation" dans certains cas quand on utilise les formules naives, mais des façons habiles de s'en tirer (via la formule de Citardauq). Cf par exemple https://math.stackexchange.com/questions/866331/numerically-stable-algorithm-for-solving-the-quadratic-equation-when-a-is-very

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