Additional test cases have been added.
A nice opportunity to use toeplitz :)
Test suite really needs more test cases!
Remove the polynomials that have positive real elements of their roots.
Find number of days
Output any real number that is neither positive nor negative
07 - Common functions and indexing 1
Find the dimensions of a matrix
Matrix with different incremental runs
Duplicate each element of a vector.
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
Remove NaN ?
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