-- -*- M2-comint -*- hash: 4756642172119188617

i1 : X = abstractVariety(3,QQ[K,c_2,c_3, Degrees => {1..3}][D,Join=>false])

o1 = X

o1 : an abstract variety of dimension 3

i2 : X.TangentBundle = abstractSheaf(X,Rank=>3,ChernClass=>1-K+c_2+c_3)

o2 = a sheaf

o2 : an abstract sheaf of rank 3 on X

i3 : chi OO(D)

              1 3   1   2     1 2    1        1
o3 = integral(-D  - -K*D  + (--K  + --c )D - --K*c )
              6     4        12     12 2     24   2

o3 : Expression of class Adjacent

i4 : 
