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I modified the test cases so they accept the alternative forms of differentiating tan (C#, Java and JavaScript language versions).
In my case, saying which of the two ways of differentiating
tanwas expected would have helped.TBH I'm surprised I didn't run into issues with the ordering of chain/product/quotient rules... or maybe it just didn't come up.
If you look at the sample tests those are the expected forms.
I would "simplify"
(- 0 (sin x))to(* -1 (sin x))because usually you dont put unecessary 0 in the result expression.And
(^ (cos x) -2)is the same as(+ 1 (^ (tan x) 2))which is what the tests expect.I will see if I can make it more clear what to simplify and to look at the tests for guidance.
language?