Thanks for the feedback :)

This was one of the most satisfying katas to solve

There's actually something called the product rule in calculus. The derivatives don't multiply together directly, instead follow this formula: (fg)' = f'g + fg' where ' represents the derivative.

Thanks mate! You did a solid

Thanks!

:)

Thanks mate :)

Done!

The Function will be initialized with a function and its derivative. So when is normally called, it should return the value of the function at x while if grad = True is provided, it should return the derivative of the function at x. Sorry if it was not described properly, I'll fix it

Done!

Fixed the typo! I think the overflow is caused by the exp function, so I'll remove it.

Some spaces at the end in the test cases are inconsistent. 'def rgXbAr(Pn):\n return Pn * 1' should equal 'def rgXbAr(Pn):\n return Pn * 1 ' due to that space at the end. I would recommend stripping the text and then asserting.

Done!

I'm getting the same error

:)