does the task involve simplifying expressions before applying values? I'm trying to find a reason for overflow (I'm sure Wolfram pre-manipulates the expression)

Confirming this is an issue.

Fork addressing this issue here:
https://www.codewars.com/kumite/667cdbbc086a7f00f6dbca18

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Yup!) Thx, updated it

already approved

solved typo and approved at 5 kyu

Btw in sample (maybe full tests?) you have a typo. Shold -> Should

Perhaps more users will be interested if you'd have a translation to either Ruby or Python. Would you consider adding such translation?

Edit: there is no consensus yet on the difficulty level. we need more solvers ..

P.S.: I also made the BigInteger tests a bit smaller. They still take several seconds to run with my solution, but if someone's solution is a bit slower, it should work as well.

For the function composition tests, I tried to use your functions (mixing numbers, arrays and strings in a nice way), but that doesn't work well with Java's static typing, so I chose simple int functions instead. A bit boring, but the code is much simpler.

Hi! Thanks for the suggestions. I added function composition and matrix multiplication tests, and I changed the random BigInteger tests so that they get displayed as separate tests. I think the translation is ready to be published. :-) Thanks!

Approved.

If you find any problems with tests, balance, or anything, let me know.

Approve????!???!?!?!??!????!