def test_hyperfocal_distance():
f, N, c = symbols('f, N, c')
assert hyperfocal_distance(f=f, N=N, c=c) == f**2/(N*c)
assert round(hyperfocal_distance(f=0.5, N=8, c=0.0033), 2) == 9.47
def test_hyperfocal_distance():
f, N, c = symbols('f, N, c')
assert hyperfocal_distance(f=f, N=N, c=c) == f**2 / (N * c)
assert round(hyperfocal_distance(f=0.5, N=8, c=0.0033), 2) == 9.47
def test_hyperfocal_distance():
f, N, c = symbols("f, N, c")
assert hyperfocal_distance(f=f, N=N, c=c) == f ** 2 / (N * c)
assert ae(hyperfocal_distance(f=0.5, N=8, c=0.0033), 9.47, 2)