I'm trying to figure out if this is a bug from a simple quiz at Future Skill

[fabstr1]

You can use numbers like 1e-9 instead of using the pow() function.

def equal(a, b, zero=1e-9):
    return abs(a-b) < zero

print(equal(1.1, 1.1))
print(equal(1.1, 1.1 + 1e-8))
print(equal(1.1, 1.1 + 1e-9))   # sketchy
print(equal(1.1, 1.1 + 1e-10))

Output:
True
False
False
True

This works fairly well, but what if the numbers you are testing are near zero? If I compare 1e-9 and 1e-9+1e-10 the test will say they are equal even though they differ by 10%. I don't think using a fixed threshold is the correct way to solve this problem.

I'm trying to write my code from the function def level7_float_comparison(self, a, b):
But I'm baffled why I'm only getting 2 points and not 6/6 points.