What is the original problem? Is it some least square fit? Or a correlation question?

I always forget the specific commands, but for me it works - see appended pdf.

BesselI.pdf

I always forget the specific commands, but for me it works - see appended pdf.

BesselI.pdf

I was looking for "special values" for BesselI and BesselK to avoid numerical evaluation,
BesselI(0,0) = 1.

BTW 'series' would indicate as well what to do:

series(f, r=0);
                              -1      5
                             r   + O(r )

I was looking for "special values" for BesselI and BesselK to avoid numerical evaluation,
BesselI(0,0) = 1.

BTW 'series' would indicate as well what to do:

series(f, r=0);
                              -1      5
                             r   + O(r )

@Markiyan Hirnyk 

BesselI(1,p*x)*BesselK(0,p*x)+BesselI(0,p*x)*BesselK(1,p*x) ;
f:=algsubs(p*x=r, %);

    f := BesselI(1, r) BesselK(0, r) + BesselI(0, r) BesselK(1, r)

Now plotting (or following Markiyan' way) suggests it is like a hyperbola
and that is the case:

diff(r*f, r); simplify(%);
                                  0

So we need the value in 1 point, FunctionAdvisor lets me guess to take 0:

r*f; limit(%, r=0);
                                  1

@Markiyan Hirnyk 

BesselI(1,p*x)*BesselK(0,p*x)+BesselI(0,p*x)*BesselK(1,p*x) ;
f:=algsubs(p*x=r, %);

    f := BesselI(1, r) BesselK(0, r) + BesselI(0, r) BesselK(1, r)

Now plotting (or following Markiyan' way) suggests it is like a hyperbola
and that is the case:

diff(r*f, r); simplify(%);
                                  0

So we need the value in 1 point, FunctionAdvisor lets me guess to take 0:

r*f; limit(%, r=0);
                                  1

I do not understand what you want - can you rephrase?

What is not correct, what is your desired result?

Then I have no good idea ... however I use 32 bit Maple (and the DLL is 32 bit),
you may try the existing DLL as well, which is in the zipped file

Also try to use the search for that board, there are some contributions (but may
be for older Maple versions, but some where about C# for example)

And I never cared much for admin rights on my private machine

Then I have no good idea ... however I use 32 bit Maple (and the DLL is 32 bit),
you may try the existing DLL as well, which is in the zipped file

Also try to use the search for that board, there are some contributions (but may
be for older Maple versions, but some where about C# for example)

And I never cared much for admin rights on my private machine

Hm ... function of type Int is not enough, I guess to have to "export" it
and use the correct calling convention.

AFAIK you can use the tool 'dependency walker' to see, which functions
are in the DLL and what are their names as seen by the system

BTW integer[4] is C-type long, no?

@Alejandro Jakubi 

Oh, have forgotten my complaint: usually I completely close my browser after
any login on any forum ... and clear all automatically (professional paranoia).

Hm ... Byron: are there any plans for solving issues around access and security?

And what happens, if you use the file manager, locate the program and that try to start it that way?

While you try to answer that here is a solution using Sum (not add).

I encoded it in ROT13, so you still can search for an answer:

"cybg( (1/a)^(a-1)*a*TNZZN(a-1)*\n  (Fhz((a+2*(1/a)^c1*rkc(a)*TNZZN(c1+1, a))/(a^2*(1/a)^(c1+1)*TNZZN(c1+1)), c1 = 1 .. sybbe(a-2))\n  +1+2/a), a=2 .. 20);"

While you try to answer that here is a solution using Sum (not add).

I encoded it in ROT13, so you still can search for an answer:

"cybg( (1/a)^(a-1)*a*TNZZN(a-1)*\n  (Fhz((a+2*(1/a)^c1*rkc(a)*TNZZN(c1+1, a))/(a^2*(1/a)^(c1+1)*TNZZN(c1+1)), c1 = 1 .. sybbe(a-2))\n  +1+2/a), a=2 .. 20);"