globalAssignment -- install standard global assignment method

Synopsis

• Usage:

  globalAssignment X

• Inputs:
  • X, a type
• Consequences:

  • the functions globalAssignFunction and globalReleaseFunction are installed in the type X under GlobalAssignHook and GlobalReleaseHook, respectively. The effect is that when an object of type X is assigned to a global variable, the function use is called on it, and thereafter that object will print out as the name of the variable.

Description

i1 : S := QQ[x]

o1 = QQ[x]

o1 : PolynomialRing

i2 : S

o2 = QQ[x]

o2 : PolynomialRing

i3 : S^3

            3
o3 = (QQ[x])

o3 : QQ[x]-module, free

i4 : R = S

o4 = R

o4 : PolynomialRing

i5 : S

o5 = R

o5 : PolynomialRing

i6 : S^3

      3
o6 = R

o6 : R-module, free