Python fn Examples

Example #1

def test_fn():
    x, z = symbols("x z")
    assert fn(1, z) == 1 / z**2
    assert fn(2, z) == -1 / z + 3 / z**3
    assert fn(3, z) == -6 / z**2 + 15 / z**4
    assert fn(4, z) == 1 / z - 45 / z**3 + 105 / z**5

    raises(TypeError, "fn(x, z)")
    raises(TypeError, "fn(1.5, z)")
    raises(TypeError, "fn(S(1)/2, z)")

Example #2

def test_fn():
    x, z = symbols("x z")
    assert fn(1, z) == 1/z**2
    assert fn(2, z) == -1/z + 3/z**3
    assert fn(3, z) == -6/z**2 + 15/z**4
    assert fn(4, z) == 1/z - 45/z**3 + 105/z**5

    raises(TypeError, "fn(x, z)")
    raises(TypeError, "fn(1.5, z)")
    raises(TypeError, "fn(S(1)/2, z)")

Example #3

File: test_bessel.py Project: Abhityagi16/sympy

def test_fn():
    x, z = symbols("x z")
    assert fn(1, z) == 1/z**2
    assert fn(2, z) == -1/z + 3/z**3
    assert fn(3, z) == -6/z**2 + 15/z**4
    assert fn(4, z) == 1/z - 45/z**3 + 105/z**5

Example #4

File: test_bessel.py Project: msgoff/sympy

def test_fn():
    x, z = symbols("x z")
    assert fn(1, z) == 1 / z**2
    assert fn(2, z) == -1 / z + 3 / z**3
    assert fn(3, z) == -6 / z**2 + 15 / z**4
    assert fn(4, z) == 1 / z - 45 / z**3 + 105 / z**5