N:=24; X:=(x^2 - 3)*y^4 + x*(x^4 + 2*x^3 + 2*x^2 + 2*x - 3)*y^2 - x^4 - x^2; q:=y; t:=(4*x*y + 4*y^3)/(x*y^4 - 4*x*y^2 - x - 2*y^4 - 2*y^2); E:=[0,t^2-2*q*t-2,0,-(t^2-1)*(q*t+1)^2,0]; P:=[(t+1)*(q*t+1),t*(q*t+1)*(t+1)];