Make a square matrix with this shape. For n=4
1 1 0 0
1 0 1 0
0 1 0 1
0 0 1 1
Word Counting and Indexing
Remove the polynomials that have positive real elements of their roots.
middleAsColumn: Return all but first and last element as a column vector
Make a run-length companion vector
Derivative of polynomial
Altitude of locations on the earth
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