ConstructionStep[]: Returns the current Construction Protocol step as a number.
ConstructionStep[Object]: Returns the Construction Protocol step for the given object as a number.
Delete[Object]: Deletes the object and all its dependents objects.
Note: Also see tool Delete Object
Relation[Object
a, Object b]: Shows a message box that gives you information
about the relation of object a and
object b.
Note: This command allows you to find out
whether two objects are equal, if a point lies on a line or conic, or if a line
is tangent or a passing line to a conic.
Note: Also see
tool Relation