Ajout des sources du chaos

saison-2/sources/chaos/suite.py

@@ -0,0 +1,28 @@
+import numpy
+from matplotlib import pyplot
+import sys
+
+ITERATIONS = 1000
+
+
+def suite(initial, k):
+    ts = numpy.linspace(0, 1, ITERATIONS)
+    x = initial
+    vs = []
+    for i in ts:
+        vs.append(x)
+        x = x * k * (1 - x)
+    return (ts, vs)
+
+
+def main():
+    k = float(sys.argv[1])
+    # 1.2 ou 2.8 ou 3.5 ou 3.86
+    ts, vs = suite(0.5, k)
+    ts, vs2 = suite(0.4, k)
+    pyplot.plot(ts, vs)
+    pyplot.plot(ts, vs2)
+    pyplot.show()
+
+
+main()