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Squarefree Decomposition

The decomposition of p in linear, quadratic, cubic etc factors is accomplished by sqfr(p). Returned is a vector of factors sorted in ascending order of the exponents.
>> syms x
>> y=(x-1)^3*(x-2)^2*(x-3)*(x-4)
y = x^7-14*x^6+80*x^5-242*x^4+419*x^3-416*x^2+220*x-48
>> z=sqfr(y)
z = [ x^2-7*x+12  x-2  x-1 ]

Helmut Dersch