fix unintended use of complex coefficient in examples/cruise.ipynb

murrayrm · murrayrm · commit 6b4501e53bfd · 2025-03-23T23:00:49.000-04:00
diff --git a/examples/cruise.ipynb b/examples/cruise.ipynb
@@ -420,8 +420,8 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "system: a =  (0.010124405669387215-0j) , b =  (1.3203061238159202+0j)\n",
-      "pzcancel: kp = 0.5 , ki = (0.005062202834693608+0j) , 1/(kp b) =  (1.5148002148317266+0j)\n",
+      "system: a =  0.010124405669387215 , b =  1.3203061238159202\n",
+      "pzcancel: kp = 0.5 , ki = 0.005062202834693608 , 1/(kp b) =  1.5148002148317266\n",
       "sfb_int: K =  0.5 , ki = 0.1\n"
      ]
     },
@@ -442,7 +442,7 @@
     "\n",
     "# Construction a controller that cancels the pole\n",
     "kp = 0.5\n",
-    "a = -P.poles()[0]\n",
+    "a = -P.poles()[0].real\n",
     "b = np.real(P(0)) * a\n",
     "ki = a * kp\n",
     "control_pz = ct.TransferFunction(\n",
