-- -*- M2-comint -*- hash: 8483282440379011569

i1 : X = specialFourfold "tau-quadric";

o1 : ProjectiveVariety, GM fourfold containing a surface of degree 2 and sectional genus 0

i2 : K3 X

o2 = K3 surface of genus 6 and degree 10 in PP^6

o2 : Embedded K3 surface

i3 : associatedK3surface X

o3 = surface in PP^6 cut out by 6 hypersurfaces of degree 2

o3 : ProjectiveVariety, K3 surface associated to X

i4 : 
