Matched plurality in the documentation.

dapperfu · web-flow · commit be36db44e280 · 2021-03-04T17:56:58.000-05:00
Code variable and 'return's documentation both indicate multiple poles can be returned.
diff --git a/control/pzmap.py b/control/pzmap.py
@@ -74,7 +74,7 @@ def pzmap(sys, plot=None, grid=None, title='Pole Zero Map', **kwargs):
 
     Returns
     -------
-    pole: array
+    poles: array
         The systems poles
     zeros: array
         The system's zeros.
