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?
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...
Project Euler: Problem 10, Sum of Primes
"Low : High - Low : High - Turn around " -- Create a subindices vector
Calculate the area of a triangle between three points
Check if number exists in vector
Distance of the centroids of the balls
Given a matrix, return the last eigen value
frame of the matrix
Center of mass
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