-- -*- M2-comint -*- hash: 9941927442603381902

i1 : X = PP_QQ^(2,2); -- Veronese surface

o1 : ProjectiveVariety, surface in PP^5

i2 : euler X

o2 = 3

i3 : X4 = X^4;

o3 : ProjectiveVariety, X x X x X x X

i4 : euler X4

o4 = 81

i5 : 
