I am porting some code I have in Mathematica to Maple. 

Mathematica has command Exponent which returns largest power on x, even if the power is not integer.

It is defined as

Maple's degree command does not allow this and returns FAIL (since it is meant to work only on polynomial, I understand that).

Is there a different command I could use which does the same as Exponent? Otherwise I have to parse it manually. The expressions will all be univariant polynomial in x, but the power on x can contain a symbol and numbers. The expression can be more complicated, but it will always have just one x in it, and I just want to extract the power in that x inside the expression.

Here are examples

degree(x^2,x);
degree(x^(n-1),x);
degree(3*x^(n+2),x);

In the above all fail except the first one which returns 2. For reference here is the result from Mathematica's Exponent command

Exponent[x^2, x]
Exponent[x^(n - 1), x]
Exponent[3*x^(n + 2), x]

I googled and could not find anything so far. I looked at PolynomialTools but do not see such command in it.

On possibility to do this manually is

get_exponent:=proc(expr,x::symbol)
   local z:=indets(expr,identical(x)^anything);
   if nops(z)<>0 then
      op(2,z[1]);
   else
      1;
   fi;
end proc;

And now

get_exponent(x^2,x);
get_exponent(x^(n-1),x);
get_exponent(3*x^(n+2),x);

2

n-1

n+2

Eitherway, if there is a builtin command in Maple, it will be better to use than my code which might still fail for some cases I did not think of.

Maple 2023

The standard way of writing quotes and double quotes in LaTeX is with `` and ''

So a string should be translated to Latex using ``the_string' '  and not ``the_string"  which is what Maple does.

see for example this  

For example, Maple translates  "regular" to

                "\text{``regular\"}"

It should be

                "\text{``regular' '}"

i.e. instead of closing it on the RIGHT with string quote  \"  it should close it with two upticks, like this ' '

Hard to see the differene here, so here is screen shot

s:="regular";
latex(s,output=string);
lprint(%)

The difference will show up depending on what font one is using. Here is an example below where when using different font, the effect is now visible. 

\documentclass[12pt]{book}
\usepackage{amsmath} 

\usepackage[T1]{fontenc}
\usepackage{mlmodern}

\begin{document}

\text{``regular"}

\text{``regular''}

\end{document}

The first one above is what Maple generates, the second one is what it should have been. Compiling with luatex gives this pdf, You can see clearly the difference now

It is important to note that this behavior shows depending on font used. For example, this code

\documentclass[12pt]{book}
\usepackage{amsmath} 
\begin{document}

\text{``regular"}

\text{``regular''}

\end{document}

When compiled gives

So to be safe, it is better to always use the standard  `` ....' '   and not `` .... \" because it then works the same for different fonts being used.

So, would it be possible to make Maple generate quoted string using the standard latex by closing it with ' ' instead of \"  ?  

the command singular can return results with _Z or _N as it says in help

The singular function may return expressions prefixed by _Z or _N, representing the integers and positive integers, respectively.
 

But it changes these letters by adding different number at the end for each call., Yet they all mean the same thing, which is an integer:

singular(1/sin(x),x)
                         {x = Pi*_Z1}

singular(x/sin(x),x)
                         {x = Pi*_Z2}

singular(x^2/sin(x),x)
                        {x = Pi*_Z3}

This makes it little hard when I try to make union of these results to only keep the unique singular points, since they are different symbols, yet they are really the same: integer times Pi.

Is there an option to tell Maple to use _Z for everything? And not keep adding new numbers each time it is called?

May be clear some internal memory table after each call?  Otherwise, I have to add more code to parse all these results and convert all _Znnn to just _Z  if it is there in each result, after each call is made.

Same issue for _N

Update

Additional example to try/test against

expr:=1/(sin(x)*cos(x)*tan(x));
s := singular(expr, x);

expr:=1/((x-1)*sin(x));
s := singular(expr, x);

expr:=1/(sin(x)*cos(x-Pi/3)*tan(x));
s := singular(expr, x);

In all the outputs above, I'd like to have same _Z show up. This will make it easier for postprocessing later on. Best solution will be to tell Maple itself not to change _Z if possible, otherwise one will need to add code to do this afterwords for all possible cases.

in Maple 2023 one can do File->Open and select an .mpl file and that will automatically open in new window using code editor.  see Maple2023-CodingTools.pdf

One problem I saw right away on windows 10, is that the diagonstic window has funny character at the end of the messages. Here is screen shot

To see if you reproduce this, here is the code I used. Simply save this in foo.mpl file and then use Maple file->open to open it (must use 2023 only for this to work)

A_class :=module()
    option object;

    #my variable
    export c::integer;

    export a::integer;

end module;

That is not all. If I simply shift the code up so the starting line in the file is not empty as above, the funny characters change to something else

Yet, it is the same exact code.  Can any one confirm this problem, and how to fix it so one can read the variable name?

I think I will stick to using notepad++ for my .mpl files for now.

I always run with the option "create a new engine for each document". which is a very nice feature in Maple.

The problem is that, when I have say 5 worksheets open and running, and one of them them hangs, I need to kill mserver.,exe from the task manager which is running this worksheet. 

most of the times I end up killing the wrong mserver.exe. I can sometimes guess by the CPU it is using. But if I have two running with high CPU it is not possible guess.

There is no ID or anything associated with the name. It will be nice if each process has in its name an ID which is also displayed in the worksheet bottom bar so one knows. This ID could be simply some random number. So the display will show  mserver-13847,exe ,   mserver-82739,exe and so on. And this name will be automtically displayed at the bottom bar of the worksheet where all time used, cpu used and memory used and so on is now displayed.  This will be a nice feature to add to Maple.  

If this is not possible, how about just displaying the PID (process ID)  of the mserver.exe connected to the worksheet in the bottom bar? This will also work, as task manager/details lists a processes with the PID there, so it will make it easy to find.

Meanwhile, while waiting for Maple 2033 to hopefully implement this feature, does anyone know of a method to help find which mserver.,exe is connected to which specific worksheet?

Windows 10.