-- -*- M2-comint -*- hash: 14645424085940945069

i1 : W = QQ[x, D, WeylAlgebra=>{x=>D}]

o1 = W

o1 : PolynomialRing, 1 differential variable(s)

i2 : M = W^1/ideal(x^2*D^2)

o2 = cokernel | x2D2 |

                            1
o2 : W-module, quotient of W

i3 : polynomialExt(M)

                      2
o3 = HashTable{0 => QQ }
                      2
               1 => QQ

o3 : HashTable

i4 : 
