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.
Project Euler: Problem 10, Sum of Primes
7 segment LED display
Given a matrix, return the last eigen value
Find all vampire fangs
Outer product of multiple vectors
Multivariate polynomials - emulate symbolic form
Multivariate polynomials - overload multiplication
Fangs of a vampire number
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