The sorted coefficients in your example should be [1; 4; 3; -2].
The test suite is also comparing against an incorrect result in the last problem.
Swap the first and last columns
Find the two most distant points
Determine if a Given Number is a Triangle Number
Create logical matrix with a specific row and column sums
Moving average (variable kernel length)
Negation the hard way
Find all vampire fangs
Product of two multivariate polynomials
Find vampire numbers
Multivariate polynomials - overload multiplication
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