additionally one has to care for upper/lower case for n resp N

Just thought, there *must* be such a command ...

For coefficients or degrees and such: the machine seems to
work more reliable if being feed with 'arranged by variable',

something like expand(%), collect(variable)

may be it hesitates to do that, since it may result in longer
expressions (but here it is desired to find the coefficients).

Edited: trying again it did not work for B ... grrrr

Just thought, there *must* be such a command ...

For coefficients or degrees and such: the machine seems to
work more reliable if being feed with 'arranged by variable',

something like expand(%), collect(variable)

may be it hesitates to do that, since it may result in longer
expressions (but here it is desired to find the coefficients).

Edited: trying again it did not work for B ... grrrr

May be http://www.mapleprimes.com/questions/128406-Series-Approximation#comment128414
gives some answer, we typed both at the same time (I was editing, you typed your critics).

Trick: H = A/B and multiseries ---> series ---> polynom

May be http://www.mapleprimes.com/questions/128406-Series-Approximation#comment128414
gives some answer, we typed both at the same time (I was editing, you typed your critics).

Trick: H = A/B and multiseries ---> series ---> polynom

The generated cdm is as expected (Win XP SP3, just added a
'print' to see it [it shows a blank at the end as well]).

system("start someURL") does not work for me, neither classical
nor standard interface, in standard I get a Maple popup window
titel = the URL and displaying "Exit Value: -1".

The browser does not start (not even as invisible in back ground
if I can trust the process list)

For classical that's why I used some batch file to be called (ugly).

Edited: with a batch file it works in Standard, but not in Claasical
for me (a bit strange).

The generated cdm is as expected (Win XP SP3, just added a
'print' to see it [it shows a blank at the end as well]).

system("start someURL") does not work for me, neither classical
nor standard interface, in standard I get a Maple popup window
titel = the URL and displaying "Exit Value: -1".

The browser does not start (not even as invisible in back ground
if I can trust the process list)

For classical that's why I used some batch file to be called (ugly).

Edited: with a batch file it works in Standard, but not in Claasical
for me (a bit strange).

C:\Programme\Maple15\Users contains a maple.ini having a section 

[Internet Browser]
Browser=
Use System Default=false

May be that helps (have not seen a file maplerc on Win XP)

C:\Programme\Maple15\Users contains a maple.ini having a section 

[Internet Browser]
Browser=
Use System Default=false

May be that helps (have not seen a file maplerc on Win XP)

using "start http://" at a command line works (for me, no specific URL needed)

calling from Maple I put it into a batch file (to be called)

in any case my firewall would aks whether to execute the browser's call

using "start http://" at a command line works (for me, no specific URL needed)

calling from Maple I put it into a batch file (to be called)

in any case my firewall would aks whether to execute the browser's call

'[0=conjugate(f1),0=conjugate(f2)]';
expand(%);
%[1] + %[2];
map(conjugate, %); 

                             0 = z1 + z2

'expand' here seems to use the 'additions theorem for the Weierstraß Zeta function'.

Edited: However I do not see why (for the task) the real part has to be zero,
I only 'see it by plotting' and thus just looked for that case.

Edited 2: the reduction is to 2*WeierstrassZeta(z,a,b)+z = 0
WeierstrassZeta(2*z, a,b) + z = 0

'[0=conjugate(f1),0=conjugate(f2)]';
expand(%);
%[1] + %[2];
map(conjugate, %); 

                             0 = z1 + z2

'expand' here seems to use the 'additions theorem for the Weierstraß Zeta function'.

Edited: However I do not see why (for the task) the real part has to be zero,
I only 'see it by plotting' and thus just looked for that case.

Edited 2: the reduction is to 2*WeierstrassZeta(z,a,b)+z = 0
WeierstrassZeta(2*z, a,b) + z = 0

One can not see what 'func_encaps' is - so you can not expect an answer.

But it is on you to reduce it to a problem of reasonable size and I would
start with H := y+a+b. Then dividing etc.

However throwing in your code and saying "does not work" may be not
the right way to aks for help (sorry, seems I am not in good mood today).

And please: try to write some kind of English, that non-English people like
me can understand

@icegood you should do step by step.

Already myint does not compile: if you would test all what you process
later, then you would get the message.

And the reason is: myint(a) just returns the symbol int(...), which of
course is not known in the language C.

And that's what the error message says.

For the last question (what can be compiled or not?) you just have to
find it out by yourself, the help pages tells you about it (roughly all
what is known in C and some small numerical extensions): it is really
much better to do it by hand looking at the expressions. If you are
very much used to Maple I doubt you can set up a routine doing that
for you (besides the question, why one should do it for one special
case).

Otherwise said: it is better to adopt your style of working with Maple,
not the other way round (adopt Maple to your C coding style)