Rust translation

Python new test framework should be used (Refer this for more detail)

C translation (author inactive)

Not affected by the issue below, i.e. no nul terms like "0x^123" in the expected result.

What is the point of tests like '0x^n' where eventually we must return '0x^(n-1)'? If we should return 0s, then we should also return the 0 of the derivative of the constant of the equation, which we do not do, as seen in the examples. Please fix.

Actual and expected are swapped in C#

NASM translation

Test cases are awful in C, JS and Python, and no random.

This statement does not make sense:

pairs should be descending like [3,5] not [5,3]

Description should be language-agnostic

Ruby 3.0 should be enabled.

Both language versions need random tests.

PHP Translation Kumited - please carefully review and approve :D