Adds two differential operators. The ring of both operators must match
i1 : R = QQ[x,y]; |
i2 : D = diffOp{x => x^2+ y} 2 o2 = (x + y)dx o2 : DiffOp |
i3 : E = diffOp{x => -y, x^2*y^2 => 2} 2 2 o3 = 2*dx dy - y*dx o3 : DiffOp |
i4 : D + E 2 2 2 o4 = 2*dx dy + x dx o4 : DiffOp |