def test_functions():
g = WildFunction('g')
p = Wild('p')
q = Wild('q')
f = cos(5 * x)
notf = x
assert f.match(p * cos(q * x)) == {p: 1, q: 5}
assert f.match(p * g) == {p: 1, g: cos(5 * x)}
assert notf.match(g) is None
F = WildFunction('F', nargs=2)
assert F.nargs == FiniteSet(2)
f = Function('f')
assert f(x).match(F) is None
F = WildFunction('F', nargs=(1, 2))
assert F.nargs == FiniteSet(1, 2)
# issue sympy/sympy#2711
f = meijerg(((), ()), ((0, ), ()), x)
a = Wild('a')
b = Wild('b')
assert f.find(a) == {
0: 1,
x: 1,
meijerg(((), ()), ((0, ), ()), x): 1,
(): 3,
(0, ): 1,
((), ()): 1,
((0, ), ()): 1
}
assert f.find(a + b) == {0: 1, x: 1, meijerg(((), ()), ((0, ), ()), x): 1}
assert f.find(a**2) == {x: 1, meijerg(((), ()), ((0, ), ()), x): 1}
def test_Function():
f = Function('f')
fx = f(x)
w = WildFunction('w')
assert str(f) == "f"
assert str(fx) == "f(x)"
assert str(w) == "w_"
def test_functions_X1():
g = WildFunction('g')
p = Wild('p')
q = Wild('q')
f = cos(5 * x)
assert f.match(p * g(q * x)) == {p: 1, g: cos, q: 5}
def test_Function():
f = Function('f')
fx = f(x)
w = WildFunction('w')
assert str(f) == 'f'
assert str(fx) == 'f(x)'
assert str(w) == 'w_'
def test_functions():
g = WildFunction('g')
p = Wild('p')
q = Wild('q')
f = cos(5 * x)
notf = x
assert f.match(p * cos(q * x)) == {p: 1, q: 5}
assert f.match(p * g) == {p: 1, g: cos(5 * x)}
assert notf.match(g) is None
F = WildFunction('F', nargs=2)
assert F.nargs == FiniteSet(2)
f = Function('f')
assert f(x).match(F) is None
F = WildFunction('F', nargs=(1, 2))
assert F.nargs == FiniteSet(1, 2)
def test_functions():
g = WildFunction('g')
p = Wild('p')
q = Wild('q')
f = cos(5 * x)
notf = x
assert f.match(p * cos(q * x)) == {p: 1, q: 5}
assert f.match(p * g) == {p: 1, g: cos(5 * x)}
assert notf.match(g) is None
def test_WildFunction():
sT(WildFunction('w'), "WildFunction('w')")