@Joe Riel Yes, the file exported from the CLI, or the Classic GUI, has such lines, but it has not if exported, with the same code, from the Standard GUI. The latter has an embeded image instead since Maple 13...

See this thread.

@Markiyan Hirnyk 

As a first approach you may look at infolevel output:

infolevel[simplify]:=5:
e2 := -3*sin(x)^(1/2)*cos(x)^2*sin(x)^m+3*sin(x)^(1/2)*cos(x)^2*cos(x)^n+
4*sin(x)^(1/2)*cos(x)^4*sin(x)^m-4*sin(x)^(1/2)*cos(x)^4*cos(x)^n:
simplify(e2,size,radical,symbolic);

simplify/do:   applying   simplify/size   function to expression
simplify/do:   applying   simplify/radical   function to expression
simplify/do:   applying   simplify/sqrt   function to expression

         1/2       2       m           1/2       2       n
-3 sin(x)    cos(x)  sin(x)  + 3 sin(x)    cos(x)  cos(x)
               1/2       4       m           1/2       4       n
     + 4 sin(x)    cos(x)  sin(x)  - 4 sin(x)    cos(x)  cos(x)

@Markiyan Hirnyk 

As a first approach you may look at infolevel output:

infolevel[simplify]:=5:
e2 := -3*sin(x)^(1/2)*cos(x)^2*sin(x)^m+3*sin(x)^(1/2)*cos(x)^2*cos(x)^n+
4*sin(x)^(1/2)*cos(x)^4*sin(x)^m-4*sin(x)^(1/2)*cos(x)^4*cos(x)^n:
simplify(e2,size,radical,symbolic);

simplify/do:   applying   simplify/size   function to expression
simplify/do:   applying   simplify/radical   function to expression
simplify/do:   applying   simplify/sqrt   function to expression

         1/2       2       m           1/2       2       n
-3 sin(x)    cos(x)  sin(x)  + 3 sin(x)    cos(x)  cos(x)
               1/2       4       m           1/2       4       n
     + 4 sin(x)    cos(x)  sin(x)  - 4 sin(x)    cos(x)  cos(x)

The file ~/.maple/15/maplerc is for configuration of the Standard GUI. Its equivalent on Win XP is %USERPROFILE%\Application Data\Maple\15\Maple.ini. On the other hand, the file <Maple 15 installation dir>\Users\maple15.ini is for configuration of the Classic GUI, the equivalent of ~/.xmaple15rc.

The file ~/.maple/15/maplerc is for configuration of the Standard GUI. Its equivalent on Win XP is %USERPROFILE%\Application Data\Maple\15\Maple.ini. On the other hand, the file <Maple 15 installation dir>\Users\maple15.ini is for configuration of the Classic GUI, the equivalent of ~/.xmaple15rc.

Just a side question. How common is in English the usage of the term "Hook" for the interior product (of a vector and a differential form), as named in the DifferentialGeometry package? It does not appear in any of the books on this subject that I have at hand, and a quick web search does not show any strong sign of such a usage either.

Just a side question. How common is in English the usage of the term "Hook" for the interior product (of a vector and a differential form), as named in the DifferentialGeometry package? It does not appear in any of the books on this subject that I have at hand, and a quick web search does not show any strong sign of such a usage either.

@hsogaard 

For a few other comments on match, in the context of discussions about pattern matching in Maple, see here and here.

@hsogaard 

For a few other comments on match, in the context of discussions about pattern matching in Maple, see here and here.

@Markiyan Hirnyk 

Yes, the commands of the tools tree are undocumented, as far as I know. Function calls, including derivatives, could be used directly, without their replacement with symbols, by using e.g. frontend:

frontend(`tools/symbolic_degree`,[g(x)^i, g(x)],[{`^`},{}]);
                                       i

frontend(`tools/symbolic_degree`,[diff(g(x,y),x)^(i+2), diff(g(x,y),x)],[{`^`},{}]);
                                     i + 2

@Markiyan Hirnyk 

Yes, the commands of the tools tree are undocumented, as far as I know. Function calls, including derivatives, could be used directly, without their replacement with symbols, by using e.g. frontend:

frontend(`tools/symbolic_degree`,[g(x)^i, g(x)],[{`^`},{}]);
                                       i

frontend(`tools/symbolic_degree`,[diff(g(x,y),x)^(i+2), diff(g(x,y),x)],[{`^`},{}]);
                                     i + 2

@Markiyan Hirnyk 

A symbolic degree command is available:

`tools/symbolic_degree`(g^i, g);
                                       i

@Markiyan Hirnyk 

A symbolic degree command is available:

`tools/symbolic_degree`(g^i, g);
                                       i

@Mac Dude 

Probably, the inert add you are looking for, equivalent to Sum, is %add:

%add( i^2, i=1..5 );
value(%);
                          / 2            \
                      %add\i , i = 1 .. 5/
                               55