nm

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These are questions asked by nm

I have couple questions on displaying/printing items I see from ShowContents(LibLocation). Here is an example

restart;
with(LibraryTools):
LibLocation:=cat(kernelopts(mapledir),"/lib/maple.mla");
c:=ShowContents(LibLocation):


First quesionNow, when I do
c[1];
then I see

When is "%?.m" there? Is this suppoed to be an actual function one can print?

second question

c[30]; gives

But when I do:

interface(verboseproc=3);
print(AiryBiZeros);

I get listing that ends up calling

---------------------------
proc(n::{algebraic, algebraic .. algebraic})
local fn;
   1   if nargs <> 1 then
   2     error "wrong number of arguments"
       end if;
   3   fn := traperror(evalf(n));
   4   if type(fn,'numeric') and not type(n,'posint') or type(fn,('numeric') .. ('anything')) and not type(op(1,n),'posint') or type(fn,('anything') .. ('numeric')) and not type(op(2,n),'posint') then
   5     error "expecting positive integers in argument"
       elif type(n,('integer') .. ('integer')) and op(2,n) < op(1,n) then
   6     NULL
       else
   7     ('AiryBiZeros')(n)   <----- Is this C function/compiled that is why it does not show?
       end if
end proc
--------------------------------------

Which is the same name I printed. So it seems to be another internal procedure with same name? How can I print it as well?

Is there a better way to print Maple procedures/command than what I am doing above so one gets full listing?
I tried Browse(); command in LibraryTools, but found it very cluncky to use (keeps losing listing and screen become blank. Very buggy)

Update:

thanks for the answers below, I can now get listing of content of an .mla like this:

restart;
with(LibraryTools):
LibLocation:=cat(kernelopts(mapledir),"/lib/maple.mla");
ShowContents(LibLocation);

But could not yet find a command that actually lists the standard *.mla libraries that come with Maple. I have to go to C:\Program Files\Maple 18\lib and copy the name of each file with .mla extention in there to get its content. Is there a way to obtain a list of all the .mla files or the standard libraries so that to automate all of this? Otherwise, I'll just copy the names of all the mla files in the above folder and make a list of them manually.

original question:

in Maple, I can do ?packages to get a help page showing list of packages available. But I need a way to do this in code, and obtain result as list or set. Next I'd like to go over each package and also obtain list of all symbols and functions/proc in this package.

For example, once I get list of packages, I'd like to get list of functions in say algcurves package, so I should get ["AbelMap", "algfun_series_sol",.....].  The list can be just strings. That is ok, I am just trying to enumerate all packages and build-in commands and symbols in Maple. May be make a small report of it for documentation purposes and to get better idea what is in Maple.

What are the commands I need to get such lists?

I am using Maple 18.02 on windows.

 

If I want to make a display of data, say 2 columns of data, with a heading on top of each column, how would one go about this in Maple? This will be for display purposes only (say for final result of a homework result, etc..)  

In Mathematica, I use the Grid command. I am not sure how to do this in Maple. I could not find Grid like command in Maple.

I can generate the data in 2 sequences  in Maple, but need to insert a heading, and also need to insert frame around eveything.

Here is an example:

f:=x->x^2;
g:=x->x^3;
data=[seq([i,f(i),g(i)],i=0..5)];
    #data = [[0, 0, 0], [1, 1, 1], [2, 4, 8], [3, 9, 27], [4, 16, 64], [5, 25, 125]]

The above data has 3 columns, 6 rows. I need to insert first row also called {"index","f","g"} and then display all in nice table form. This is how I would do the above in Mathematica to give idea of what I looking for

f[x_] := x^2;
g[x_] := x^3;
data = Table[{i, f[i], g[i]}, {i, 0, 5}]
    (* {{0, 0, 0}, {1, 1, 1}, {2, 4, 8}, {3, 9, 27}, {4, 16, 64}, {5, 25, 125}} *)

And this is below the part I do not know how to emulate in Maple:

data = Insert[data, {"i", "f(i)", "g(i)"}, 1]
    #   {{"i", "f(i)", "g(i)"}, {0, 0, 0}, {1, 1, 1}, {2, 4, 8}, {3, 9, 27}, {4, 16, 64}, {5, 25, 125}}
    # now use Grid to format with frame around everything
Grid[data, Frame -> All]

sometimes, the maple server goes in a loop and runs full CPU. Waiting makes no difference. It just hanged. Even stopping the computation from the UI makes no difference (i.e. cliking on the "interrupt the current evaluation" button). Only way I found is go to task manager and terminate the mserver.exe by force.

The problem now is that I have to close Maple and start all over again. Since I can't start a new computation or do anything if the server is down.

I am just asking if there is a better way to do all this. For illustration, this int() command below hangs the server, so you can try the same thing I am seeing. This is on Maple 18.02, windows 7, 64 bit.

Make sure to save all your work before running this. This is just one example. I have many more where maple hangs like this (i.e. the interrupt does not terminate anything and the server keeps running)

y := 1;
z := 2 + x + y;
s := 1/2;
m2 := 5325;
m1 := 5279;
mz := 106055/10;

int1 =evalf(int(1/z^3 *(x + y + 2* x*y)* (1 + s^2/(2 *m2^2* z)) *exp(-(m2^2*x + m1^2*y)/s^2 + (mz^2 *(x + y + 2 *x*y))/(2* s^2* z)), x=0..1));

After I do

restart;
plot(cos);

Now I right-click on the plot, and from the menu change the "line" to "dashed" style, so the plot becomes like this:

Now I would like to obtain the Maple plot command that would have generated the above plot, so I can use the command later in my script.  I could not find a menu option to show the Maple command.

Maple 18.02 on windows 7

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