Python fiedler_companion Examples

Programming Language: Python

Namespace/Package Name: scipy.linalg

Method/Function: fiedler_companion

Examples at hotexamples.com: 2

Python fiedler_companion - 2 examples found. These are the top rated real world Python examples of scipy.linalg.fiedler_companion extracted from open source projects. You can rate examples to help us improve the quality of examples.

Example #1

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def test_fiedler_companion():
    fc = fiedler_companion([])
    assert_equal(fc.size, 0)
    fc = fiedler_companion([1.])
    assert_equal(fc.size, 0)
    fc = fiedler_companion([1., 2.])
    assert_array_equal(fc, np.array([[-2.]]))
    fc = fiedler_companion([1e-12, 2., 3.])
    assert_array_almost_equal(fc, companion([1e-12, 2., 3.]))
    with assert_raises(ValueError):
        fiedler_companion([0, 1, 2])
    fc = fiedler_companion([1., -16., 86., -176., 105.])
    assert_array_almost_equal(eigvals(fc), np.array([7., 5., 3., 1.]))

Example #2

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File: test_special_matrices.py Project: WarrenWeckesser/scipy

def test_fiedler_companion():
    fc = fiedler_companion([])
    assert_equal(fc.size, 0)
    fc = fiedler_companion([1.])
    assert_equal(fc.size, 0)
    fc = fiedler_companion([1., 2.])
    assert_array_equal(fc, np.array([[-2.]]))
    fc = fiedler_companion([1e-12, 2., 3.])
    assert_array_almost_equal(fc, companion([1e-12, 2., 3.]))
    with assert_raises(ValueError):
        fiedler_companion([0, 1, 2])
    fc = fiedler_companion([1., -16., 86., -176., 105.])
    assert_array_almost_equal(eigvals(fc),
                              np.array([7., 5., 3., 1.]))