The description should be:

def nth_of_e(5) -> '2.71828'

The constant specified in the description is not e and also doesn't match the example test. The description states:

2.71828182845459045235360282875

But the example test (and the real e constant) is:

2.7182818284590452353602875

That's good. For clarity, I would go with something like

The function should return "wrong input" if the specified precision is invalid (negative or [...]).

The [...] would explain the maximum.

The description should explain how invalid inputs are to be handled.

💯✔️

It's the most wonderful time of the year!

@stɛffan153 Thank you for the reminder!

Thank you for raising this. I see that both issues have been resolved.

Thank you for fixing this.

Some things seem a bit odd:

• The kata description says to round the metric, but your solution is flooring it
• In the heron formula the p value is always halved, but your solution only halves it sometimes

I originally had my solution with rounding and the limits as per the kata description, but it was always failing. So I removed the rounding, changed the triangle limit to the wrong one and now it passes the tests.

I think something is wrong with the kata, but I don't really understanding what's going on, so I'll raise this as a question.

No random tests.

Looking forward to it!

Thank you for the idea - I've implemented that.

That's specified in the notes:

If the start position happens to be at a station then the train leaves at the next move