prim
, cont
[0] E=(y-z)*(x+y)*(x-z)*(2*x-y); (2*y-2*z)*x^3+(y^2-3*z*y+2*z^2)*x^2+(-y^3+z^2*y)*x+z*y^3-z^2*y^2 [1] prim(E); 2*x^3+(y-2*z)*x^2+(-y^2-z*y)*x+z*y^2 [2] cont(E); y-z [3] prim(E,z); (y-z)*x-z*y+z^2
var
, section ord
.
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