Learn Special Methods by Building a Vector Space - Step 7

Python
1

Tell us what’s happening:

Hi, this is a bit annoying. In the previous step (6) my return statement for the norm method was: return math.sqrt(self.x2 + self.y2) and it kept telling me this was wrong but offered no other explanation.
Eventually I changed it to: return (self.x2 + self.y2)**0.5 which is exactly the same!!! I would have thought using the math.sqrt function was a better and more transparent coding option

Your code so far


# User Editable Region

class Vector:
    def __init__(self, x, y):
        self.x = x
        self.y = y
        
    def norm(self):
        return (self.x**2 + self.y**2)**0.5

# User Editable Region

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Challenge Information:

Learn Special Methods by Building a Vector Space - Step 7

1 Like
2

The test allows you to do it both ways. If you were not able to pass using math.sqrt, then I suspect you didn’t import the math module.

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