#3624 incomplete example of unorder in Expression.texi

[Jinsong Zhao]

Hi there,

The example in Expression.texi for unorder is imcomplete. In fact, the input and output of the example code for unorder is messy. The correct one is:

(%i1) unorder();

(%o1)                                 []
(%i2) b*x+a^2;

                                          2
(%o2)                              b x + a
(%i3) ordergreat(a);

(%o3)                                done
(%i4) b*x+a^2;

                                    2
(%o4)                              a  + b x
(%i5) %th(1) - %th(3);

                                     2    2
(%o5)                               a  - a
(%i6) unorder();

(%o6)                                 [a]
(%i7) %th(2);

                                       2    2
(%o7)                             _101a  - a

By the way, I don't know what's _101 befor a.

Best,
Jinsong