i1 : R = QQ[x_1..x_4];
i2 : multiplierIdeal(ideal {x_1^3 - x_2^2, x_2^3 - x_3^2}, 31/18) 2 2 o2 = ideal (x , x , x x , x ) 3 2 1 2 1 o2 : Ideal of R