fix typo

petercorke · petercorke · commit e9af061b64ab · 2020-10-11T09:29:13.000+10:00
diff --git a/spatialmath/super_pose.py b/spatialmath/super_pose.py
@@ -436,7 +436,7 @@ def simplify(self):
         .. todo:: No need to simplify the constants in bottom row
         """
         vf = np.vectorize(sympy.simplify)
-        return self.__class__([vf(x) for x in self.data], chec=False)
+        return self.__class__([vf(x) for x in self.data], check=False)
 
     # ----------------------- i/o stuff
 
