remove non-ASCII text from statesp.py comment (was causing Travis CI issues)

murrayrm · murrayrm · commit e6447ea10bbc · 2018-07-01T19:33:34.000-07:00
diff --git a/control/statesp.py b/control/statesp.py
@@ -537,8 +537,9 @@ def zero(self):
             # from
             # https://dspace.mit.edu/bitstream/handle/1721.1/841/P-0802-06587335.pdf.
             # The QZ algorithm solves the generalized eigenvalue problem: given
-            # `L = [A, B; C, D]` and `M = [I_nxn 0]`, find all finite λ for
-            # which there exist nontrivial solutions of the equation `Lz - λMz`.
+            # `L = [A, B; C, D]` and `M = [I_nxn 0]`, find all finite lambda 
+            # for which there exist nontrivial solutions of the equation
+            # `Lz - lamba Mz`.
             #
             # The generalized eigenvalue problem is only solvable if its
             # arguments are square matrices.
