Added folgen und Reihen

reihen_plot.py

@@ -0,0 +1,17 @@
+from matplotlib import pyplot as plt
+
+f = lambda x_prev: 1/4 * (x - 3)
+x = 0
+
+reihe = [x]
+
+for i in range(100):
+    x = f(x)
+    reihe.append(x)
+
+plt.plot(reihe, marker='o', linestyle='-')
+plt.title("Reihen Plot")
+plt.xlabel("n")
+plt.ylabel("x_n")
+plt.grid()
+plt.savefig("reihen_plot.png", dpi=500)