======================================================================
FAIL: test_bdalg_functions (control.tests.iosys_test.TestIOSys)
Test block diagram functions algebra on I/O systems
----------------------------------------------------------------------
Traceback (most recent call last):
File "/build/control-0.8.3/control/tests/iosys_test.py", line 457, in test_bdalg_functions
np.testing.assert_array_almost_equal(ios_y, lin_y, decimal=3)
File "/nix/store/dh3b3w7lkcy6p56x0fbv17k0k5winx0y-python3.7-numpy-1.18.1/lib/python3.7/site-packages/numpy/testing/_private/utils.py", line 1047, in assert_array_almost_equal
precision=decimal)
File "/nix/store/dh3b3w7lkcy6p56x0fbv17k0k5winx0y-python3.7-numpy-1.18.1/lib/python3.7/site-packages/numpy/testing/_private/utils.py", line 846, in assert_array_compare
raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 3 decimals
Mismatched elements: 5 / 200 (2.5%)
Max absolute difference: 0.00176677
Max relative difference: 0.33094816
x: array([[ 0.000e+00, 1.055e-01, 2.183e-01, 3.356e-01, 4.551e-01,
5.746e-01, 6.921e-01, 8.055e-01, 9.131e-01, 1.013e+00,
1.105e+00, 1.187e+00, 1.257e+00, 1.316e+00, 1.362e+00,...
y: array([[ 0.000e+00, 1.055e-01, 2.183e-01, 3.357e-01, 4.553e-01,
5.747e-01, 6.920e-01, 8.053e-01, 9.129e-01, 1.013e+00,
1.105e+00, 1.187e+00, 1.257e+00, 1.316e+00, 1.362e+00,...
----------------------------------------------------------------------
Ran 463 tests in 19.914s
FAILED (failures=1, errors=2, skipped=118)
This is with: