def test_f3():
idx = f3(xs).argmax()
correct_val = xs[idx]
x = golden_section_search(f3, 0, 30, 40, 0.01)
assert abs(correct_val - x) < 0.01
def test_f3():
idx = f3(xs).argmax()
correct_val = xs[idx]
x = golden_section_search(f3, 0, 30, 40, 0.01)
assert abs(correct_val - x) < 0.01
def test_f2():
idx = f2(xs).argmax()
correct_val = xs[idx]
x = golden_section_search(f2, 0, 30, 40, 0.005)
msg = 'correct %.2f, but got %.2f' % (correct_val, x)
assert abs(correct_val - x) < 0.01, msg
def test_f2():
idx = f2(xs).argmax()
correct_val = xs[idx]
x = golden_section_search(f2, 0, 30, 40, 0.005)
msg = 'correct %.2f, but got %.2f' % (correct_val, x)
assert abs(correct_val - x) < 0.01, msg