InvertedPendulumMPCControl: fixed deprecated waring about using * for matrix multiplication (AtsushiSakai#631)

Author: ksvbka

Control/InvertedPendulumMPCControl/inverted_pendulum_mpc_control.py

@@ -77,7 +77,7 @@ def mpc_control(x0):
     for t in range(T):
         cost += cvxpy.quad_form(x[:, t + 1], Q)
         cost += cvxpy.quad_form(u[:, t], R)
-        constr += [x[:, t + 1] == A * x[:, t] + B * u[:, t]]
+        constr += [x[:, t + 1] == A @ x[:, t] + B @ u[:, t]]
 
     constr += [x[:, 0] == x0[:, 0]]
     prob = cvxpy.Problem(cvxpy.Minimize(cost), constr)