In addition to the weak test suite: The title of the problem says "Sinus function", yet the (incomplete) problem description mentions only "cosine" ??? Furthermore, should abs(cos(-x)) be assigned to y, or to z?
The test description has been updated. Also, new and improved test suites are added within the scope of the problem.
Please improve the test cases. Returning 1 and -1 is complete enough with these sloppy tests.
bad test suite
The test suite is not very rigorous...
Celsius to Kelvin
Area of an equilateral triangle
Side of an equilateral triangle
Fermat's Last Theorem - Fermat's conjecture
Find the function 2
subtract central cross
Given a matrix, return the last eigen value
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