jakubi

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MaplePrimes Activity


These are replies submitted by jakubi

The same way that the stream

INTERFACE_WORKSHEET(display,file="file");

opens programmatically the worksheet "file", my guess is that there is another undocumented stream for export of worksheets to html, say.

The same way that the stream

INTERFACE_WORKSHEET(display,file="file");

opens programmatically the worksheet "file", my guess is that there is another undocumented stream for export of worksheets to html, say.

With GRTensor I would further do:

grmap(Ricciscalar,convert,'x',polynom);
grmap(Ricciscalar,series,'x',mu,3);
And to get a more useful result
grmap(Ricciscalar,collect,'x',[omega,mu],distributed,
u->collect(u,[c,r,f,diff,a,b]));
grdisplay(_):





`R ` = ((6*cos(theta)^2-2)*f(r)^2*r^2+(4-4*cos(theta)^2)*`f'`*f(r)*r+(6-6*cos(theta)^2)*f(r)^2)/c^2*mu^2*omega^2-2-2/r^2+(-3*`b''`+2*b(r)+(-8*`b'`+2*`a'`)/r+2*a(r)/r^2)*mu+(3/2*`b'`*`a'`+(3*a(r)+3*b(r))*`b''`-2*b(r)^2+(-4*a(r)*`a'`+(8*a(r)+8*b(r))*`b'`)/r-2*a(r)^2/r^2)*mu^2 where primes denote derivative wrt r, got by these lines:
grDalias(a(r),r,`'`):
grDalias(b(r),r,`'`):
grDalias(f(r),r,`'`):

With GRTensor I would further do:

grmap(Ricciscalar,convert,'x',polynom);
grmap(Ricciscalar,series,'x',mu,3);
And to get a more useful result
grmap(Ricciscalar,collect,'x',[omega,mu],distributed,
u->collect(u,[c,r,f,diff,a,b]));
grdisplay(_):





`R ` = ((6*cos(theta)^2-2)*f(r)^2*r^2+(4-4*cos(theta)^2)*`f'`*f(r)*r+(6-6*cos(theta)^2)*f(r)^2)/c^2*mu^2*omega^2-2-2/r^2+(-3*`b''`+2*b(r)+(-8*`b'`+2*`a'`)/r+2*a(r)/r^2)*mu+(3/2*`b'`*`a'`+(3*a(r)+3*b(r))*`b''`-2*b(r)^2+(-4*a(r)*`a'`+(8*a(r)+8*b(r))*`b'`)/r-2*a(r)^2/r^2)*mu^2 where primes denote derivative wrt r, got by these lines:
grDalias(a(r),r,`'`):
grDalias(b(r),r,`'`):
grDalias(f(r),r,`'`):

Maple Primes contains posts that it would be desirable to have in the Maple Wiki. The authors of these posts have some rights on them (not sure exactly what). I would find very convenient for everybody that the same authors put themselves that material in the wiki. Alternatively, they could grant permision to put the material there. How to handle this process? Opinions?

Otherwise, perhaps, it would be safer to put links to these posts.

Maple Primes contains posts that it would be desirable to have in the Maple Wiki. The authors of these posts have some rights on them (not sure exactly what). I would find very convenient for everybody that the same authors put themselves that material in the wiki. Alternatively, they could grant permision to put the material there. How to handle this process? Opinions?

Otherwise, perhaps, it would be safer to put links to these posts.

I see this statement about licence in Wikipedia:

All of the text in Wikipedia, and most of the images and other content, is covered by the GNU Free Documentation License (GFDL). Contributions remain the property of their creators, while the GFDL license ensures the content is freely distributable and reproducible. (See the copyright notice and the content disclaimer for more information.)

Opinions about this?

?worksheet,reference,maplehdb states:

Read-only Help Databases
The shipped Maple .hdb files, which are located in \lib, are read-only files. This means that you cannot add to, remove from, or edit this collection of help pages.

So, apparently, by normal means, you cannot add to them anything.

?worksheet,reference,maplehdb states:

Read-only Help Databases
The shipped Maple .hdb files, which are located in \lib, are read-only files. This means that you cannot add to, remove from, or edit this collection of help pages.

So, apparently, by normal means, you cannot add to them anything.

Not sure what you mean by that. Instructions are in ?worksheet,reference,helppages

Not sure what you mean by that. Instructions are in ?worksheet,reference,helppages

are more initial tests and drafts than anything else. That is why I have placed  them  in my personal area. And they are in the spirit of wiki: something fast, hopefuly improving with time. Organization, content and quality control of the material should yet be discussed.

These particular paragraphs are literal copies from the Maple V manuals, from which I have taken notes many years ago. Hence, you may find outdated and/or incorrect statements. Take it, if you like, as material to start a discussion and further work. I think that it is better something than nothing.

Certainly, I do not see associated discussion pages. I do not know whether this MoinMoin wiki handles them. Assuming that there is none available, we have the email list. We may also add the comments directly on these draft pages. Presumably you should be able to edit them if you like and/or create your own.

 

As shown here, it was a recurrent idea of many. May be that I have just insisted on it a bit more lately...

I get the help pages, but not in Standard...

Full documentation? No, these help pages are minimal, and there is no page for 'Code'.

Send request. I guess that you mean this:

?HTTP.Post

HTTP[Post]
Calling Sequence
Post (uri, content, headers)

Parameters

uri - host, port, and url path of the form http://host:port/path/to/file

content - content of the HTTP request

headers - (optional) list of header values; duplicate values are combined into a single comma-separated list

Returns
Post returns a tuple (code, headers, content) with code set to the return code sent by the server, headers as a table, and content containing the body of the server response.

I get the help pages, but not in Standard...

Full documentation? No, these help pages are minimal, and there is no page for 'Code'.

Send request. I guess that you mean this:

?HTTP.Post

HTTP[Post]
Calling Sequence
Post (uri, content, headers)

Parameters

uri - host, port, and url path of the form http://host:port/path/to/file

content - content of the HTTP request

headers - (optional) list of header values; duplicate values are combined into a single comma-separated list

Returns
Post returns a tuple (code, headers, content) with code set to the return code sent by the server, headers as a table, and content containing the body of the server response.
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