Replace np.NaN removed in numpy 2

bnavigator · bnavigator · commit 03df7185bc8a · 2024-04-20T16:25:33.000+02:00
diff --git a/control/tests/timeresp_test.py b/control/tests/timeresp_test.py
@@ -173,15 +173,15 @@ def tsystem(self, request):
         # System Type 1 - Step response not stationary:  G(s)=1/s(s+1)
         siso_tf_type1 = TSys(TransferFunction(1, [1, 1, 0]))
         siso_tf_type1.step_info = {
-             'RiseTime': np.NaN,
-             'SettlingTime': np.NaN,
-             'SettlingMin': np.NaN,
-             'SettlingMax': np.NaN,
-             'Overshoot': np.NaN,
-             'Undershoot': np.NaN,
+             'RiseTime': np.nan,
+             'SettlingTime': np.nan,
+             'SettlingMin': np.nan,
+             'SettlingMax': np.nan,
+             'Overshoot': np.nan,
+             'Undershoot': np.nan,
              'Peak': np.Inf,
              'PeakTime': np.Inf,
-             'SteadyStateValue': np.NaN}
+             'SteadyStateValue': np.nan}
 
         # SISO under shoot response and positive final value
         # G(s)=(-s+1)/(s²+s+1)
diff --git a/control/timeresp.py b/control/timeresp.py
@@ -1590,15 +1590,15 @@ def step_info(sysdata, T=None, T_num=None, yfinal=None, params=None,
             InfValue = InfValues[i, j]
             sgnInf = np.sign(InfValue.real)
 
-            rise_time: float = np.NaN
-            settling_time: float = np.NaN
-            settling_min: float = np.NaN
-            settling_max: float = np.NaN
+            rise_time: float = np.nan
+            settling_time: float = np.nan
+            settling_min: float = np.nan
+            settling_max: float = np.nan
             peak_value: float = np.Inf
             peak_time: float = np.Inf
-            undershoot: float = np.NaN
-            overshoot: float = np.NaN
-            steady_state_value: complex = np.NaN
+            undershoot: float = np.nan
+            overshoot: float = np.nan
+            steady_state_value: complex = np.nan
 
             if not np.isnan(InfValue) and not np.isinf(InfValue):
                 # RiseTime
