here you are

switched it, thanks a lot

i think assertion message have to be anyway, because if i'm using type insted of isinstance default message will be <class '...'> should equal <class 'tuple'> for the first one and N should equal 2 for the second one, where N is the length of the output tuple. I think these messages are... not user friendly a bit, especially for the second one: user can't understand that N is the length of the output tuple

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i think i resolved it in correct way, check it please

• rewritten, but can't say how correct is it to replace a tuple with an immutable array
• maybe they are, but i didn't find any approved or actively moderating similiar kata, so i decided to create this one

• check it in test cases 'Output format tests', or you mean that i should add it to each test block insted of one test at the beginning? or add it to example tests too?
• which part of code?
• because aprroximate equality works with values one by one, so i need to loop it somewhere. I can do it with for, but i think it'll be worse than do it in list. If there is an optimal way to do it, please tell me
• my bad, i'll fix it

output format validator added, thanks!

rewritten

issue fixed, rounding rewritten to approximate equality, thanks for your contribution!

added! thanks

Formula description should be clearer now

Rewritten, thanks

Thanks a lot! Fixed

There is only +-1 coefficient before x in random tests