René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"python-control  0.9.1 fails in `test_nyquist_indent` on aarch64","articleBody":"python-control  0.9.1 fails in `test_nyquist_indent` on aarch64:\r\n```\r\n[  132s] =================================== FAILURES ===================================\r\n[  132s] _____________________________ test_nyquist_indent ______________________________\r\n[  132s] \r\n[  132s]     def test_nyquist_indent():\r\n[  132s]         # FBS Figure 10.10\r\n[  132s]         s = ct.tf('s')\r\n[  132s]         sys = 3 * (s+6)**2 / (s * (s+1)**2)\r\n[  132s]         # poles: [-1, -1, 0]\r\n[  132s]     \r\n[  132s]         plt.figure();\r\n[  132s]         count = ct.nyquist_plot(sys)\r\n[  132s]         plt.title(\"Pole at origin; indent_radius=default\")\r\n[  132s]         assert _Z(sys) == count + _P(sys)\r\n[  132s]     \r\n[  132s]         # first value of default omega vector was 0.1, replaced by 0. for contour\r\n[  132s]         # indent_radius is larger than 0.1 -\u003e no extra quater circle around origin\r\n[  132s]         count, contour = ct.nyquist_plot(sys, plot=False, indent_radius=.1007,\r\n[  132s]                                          return_contour=True)\r\n[  132s]         np.testing.assert_allclose(contour[0], .1007+0.j)\r\n[  132s]         # second value of omega_vector is larger than indent_radius: not indented\r\n[  132s] \u003e       assert np.all(contour.real[2:] == 0.)\r\n[  132s] E       AssertionError: assert False\r\n[  132s] E        +  where False = \u003cfunction all at 0xffff92ec1d30\u003e(array([0.1001..., 0.        ]) == 0.0\r\n[  132s] E        +    where \u003cfunction all at 0xffff92ec1d30\u003e = np.all\r\n[  132s] E           +array([0.1001835 , 0.10017386, 0.10016404, 0.10015404, 0.10014385,\\n\r\n[  132s] E           +       0.10013347, 0.1001229 , 0.10011213, 0.10010116, 0.10008998,\\n\r\n[  132s] E           +       0.10007859, 0.10006699, 0.10005517, 0.10004313, 0.10003086,\\n\r\n[  132s] E           +       0.10001837, 0.10000564, 0.09999267, 0.09997946, 0.099966  ,\\n\r\n[  132s] E           +       0.09995229, 0.09993832, 0.09992409, 0.0999096 , 0.09989483,\\n\r\n[  132s] E           +       0.09987978, 0.09986445, 0.09984884, 0.09983293, 0.09981672,\\n\r\n[  132s] E           +       0.09980021, 0.09978339, 0.09976625, 0.09974879, 0.099731  ,\\n...\r\n[  132s] E           \r\n[  132s] E           ...Full output truncated (195 lines hidden), use '-vv' to show)\r\n[  132s] \r\n[  132s] control/tests/nyquist_test.py:202: AssertionError\r\n```\r\n","author":{"url":"https://github.com/ggardet","@type":"Person","name":"ggardet"},"datePublished":"2022-01-04T09:57:50.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/687/python-control/issues/687"}