quick question - when looking things up in the python standard library I keep hitting the same problem which leaves me convinced i'm doing something wrong. I need to incorporate arctan(x) into my program where x = (sqrt(2) - 1) Evidently I still need to look up the square root function aswell, but just when I have been trying to do things like the arctan(45) I keep getting errors.

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`math.atan(45)`

I imagine i'm doing something trivially silly, but i'm still learning