Note that this problem uses the word solve when it needs to say EVALUATE.
Also the required code to pass the tests shouldn't be available by COPY-AND-PASTE from Test Suite!
Most nonzero elements in row
Output any real number that is neither positive nor negative
Sum the numbers on the main diagonal
06 - Matrix Equations 3
07 - Common functions and indexing 2
Sum positive elements of matrix.
Find scalar product of two polynomials a and b, given as vector array.
Find Euclidean norm of given vector u.
Select primes from the matrix.
Compare two strings.
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