示例#1
0
def test_hermite():
    x, w = gauss_hermite(1, 17)
    assert [str(r) for r in x] == ['0']
    assert [str(r) for r in w] == ['1.7724538509055160']

    x, w = gauss_hermite(2, 17)
    assert [str(r) for r in x] == ['-0.70710678118654752',
                                   '0.70710678118654752']

    assert [str(r) for r in w] == ['0.88622692545275801',
                                   '0.88622692545275801']

    x, w = gauss_hermite(3, 17)
    assert [str(r) for r in x] == [
        '-1.2247448713915890',
        '0',
        '1.2247448713915890']
    assert [str(r) for r in w] == [
        '0.29540897515091934',
        '1.1816359006036774',
        '0.29540897515091934']

    x, w = gauss_hermite(4, 17)
    assert [str(r) for r in x] == [
        '-1.6506801238857846',
        '-0.52464762327529032',
        '0.52464762327529032',
        '1.6506801238857846'
    ]
    assert [str(r) for r in w] == [
        '0.081312835447245177',
        '0.80491409000551284',
        '0.80491409000551284',
        '0.081312835447245177'
    ]

    x, w = gauss_hermite(5, 17)
    assert [str(r) for r in x] == [
        '-2.0201828704560856',
        '-0.95857246461381851',
        '0',
        '0.95857246461381851',
        '2.0201828704560856'
    ]
    assert [str(r) for r in w] == [
        '0.019953242059045913',
        '0.39361932315224116',
        '0.94530872048294188',
        '0.39361932315224116',
        '0.019953242059045913'
    ]
示例#2
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def test_hermite_precise():
    x, w = gauss_hermite(3, 40)
    assert [str(r) for r in x] == [
        '-1.224744871391589049098642037352945695983', '0',
        '1.224744871391589049098642037352945695983'
    ]
    assert [str(r) for r in w] == [
        '0.2954089751509193378830279138901908637996',
        '1.181635900603677351532111655560763455198',
        '0.2954089751509193378830279138901908637996'
    ]
示例#3
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def test_hermite_precise():
    x, w = gauss_hermite(3, 40)
    assert [str(r) for r in x] == [
        '-1.224744871391589049098642037352945695983',
        '0',
        '1.224744871391589049098642037352945695983'
    ]
    assert [str(r) for r in w] == [
        '0.2954089751509193378830279138901908637996',
        '1.181635900603677351532111655560763455198',
        '0.2954089751509193378830279138901908637996'
    ]
示例#4
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def test_hermite():
    x, w = gauss_hermite(1, 17)
    assert [str(r) for r in x] == ['0']
    assert [str(r) for r in w] == ['1.7724538509055160']

    x, w = gauss_hermite(2, 17)
    assert [str(r)
            for r in x] == ['-0.70710678118654752', '0.70710678118654752']

    assert [str(r)
            for r in w] == ['0.88622692545275801', '0.88622692545275801']

    x, w = gauss_hermite(3, 17)
    assert [str(r)
            for r in x] == ['-1.2247448713915890', '0', '1.2247448713915890']
    assert [str(r) for r in w] == [
        '0.29540897515091934', '1.1816359006036774', '0.29540897515091934'
    ]

    x, w = gauss_hermite(4, 17)
    assert [str(r) for r in x] == [
        '-1.6506801238857846', '-0.52464762327529032', '0.52464762327529032',
        '1.6506801238857846'
    ]
    assert [str(r) for r in w] == [
        '0.081312835447245177', '0.80491409000551284', '0.80491409000551284',
        '0.081312835447245177'
    ]

    x, w = gauss_hermite(5, 17)
    assert [str(r) for r in x] == [
        '-2.0201828704560856', '-0.95857246461381851', '0',
        '0.95857246461381851', '2.0201828704560856'
    ]
    assert [str(r) for r in w] == [
        '0.019953242059045913', '0.39361932315224116', '0.94530872048294188',
        '0.39361932315224116', '0.019953242059045913'
    ]