Expressed in geometrical language, this process amounts to approaching the origin along the axis of x2.
Somewhat different, however, is the result when the solution has an intermediate composition, as represented by x2 or x4.
Though as a matter of fact, x2 isn't intended for the empire, or indeed for the hands of any European power.
Similar stage; different view of spindle-remains (s) and of chromatin element (x2).
The infinitesimal operations of the projective group in one variable are d/dx, x(d/dx), x2(d/dx).