I guess it's because it depends on your current rank, you can find something about that in the docs.

whats type checking?

That seems like it would be a very interesting kata, but for now I'm going to leave it at this but maybe I will create a harder version of this kata in future once this gets approved :)

could you implement a algo which solve not only poly equation, and non-linear equations?

also i don't see how thats an issue

Being honest, I have no clue how that code works because i am unfimilar with all those libraries, SORRY!

I wouldn't say much easier. For some languages, I agree with you, one additional optimisation step is required to avoid timing out.

I have changed the idea of the kata and now i think all the solutions are correct

I hope the new idea for the kata makes it slightly harder

Thanks!

No that's perfectly correct!!

Great Kata!!!

My implementation passes every random test checked now. Issue seems to be resolved.