méthode de monte carlo

parent 3729cd98
......@@ -72,14 +72,41 @@
},
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"cell_type": "code",
"execution_count": 11,
"execution_count": 12,
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"outputs": [],
"outputs": [
{
"data": {
"text/plain": [
"3.128911138923655"
]
},
"execution_count": 12,
"metadata": {},
"output_type": "execute_result"
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],
"source": [
"np.random.seed(seed=42)\n",
"N = 10000\n",
"x = np.random.uniform(size=N, low=0, high=1)\n",
"theta = np.random.uniform(size=N, low=0, high=pi/2)"
"theta = np.random.uniform(size=N, low=0, high=pi/2)\n",
"2/(sum((x+np.sin(theta))>1)/N)"
]
},
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"cell_type": "markdown",
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"source": [
"### 1.3 Avec un argument \"fréquentiel\" de surface"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Sinon, une méthode plus simple à comprendre et ne faisant pas intervenir d’appel à la fonction sinus se base sur le fait que si $X ∼ U$(0, 1) et $Y ∼ U$(0, 1) alors $P[X^2 + Y^2 ≤ 1]= π/4$ [(voir\n",
"méthode de Monte Carlo sur Wikipedia)](https://fr.wikipedia.org/wiki/M%C3%A9thode_de_Monte-Carlo#D%C3%A9termination_de_la_valeur_de_%CF%80). Le code suivant illustre ce fait :"
]
},
{
......
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