finished ex_47

ex_47.py

@@ -1,5 +1,6 @@
 import numpy as np
 from scipy.optimize import minimize
+import matplotlib.pyplot as plt
 
 f = lambda x: x*np.sin(7*x)*np.exp(-(x - 2)**2)
 
@@ -7,3 +8,12 @@ x0 = f(np.arange(-20, 20, 0.1)).min()
 
 m = minimize(f, x0, method="CG")
 print(m)
+
+
+g = lambda x0: minimize(f, x0, method="CG").x
+x0s = np.arange(-3, 3, 0.001)
+xs = [g(x0) for x0 in x0s]
+
+plt.plot(x0s, xs)
+plt.show()
+