if you have a non-english setting for Excel or Windows, then the delimiters are different from what Maple exports (you have to replace the point by a comma)

to enforce numbers one often can just produce a copy by "=A(1) * 1.0 " etc or similar (or use the value function)

I think he wants Sum( expression(k),  k in someSet) or the definite version of that (as one would write in Math)

I find it a bit difficult to exactly understand your needs ... that's the curse of specification by examples ...

Personally I would follow or work out pagan's way and what Robert Israel showed you is just another way to describe a possible set. One way of course to feed the function with that set.

Could you write down what you want (even if it is false in Maple syntax) and say which symbols are symbolic and which are actual constants? To me it seems you want a kind of symbolic solution and if written down you do not quite like it :-)

does it work for x(5) instead of x[5] ? indexing is a bit hairy ... the other thing may be to use subs( x[Engine] = 5 , ...) ... not sure, what you mean exactly

If I get it right you only need Excel to read data. Perhaps the simpliest method is to export data from
Excel (as CSV or similar) and read that file with Maple (if you have an English version you need not
care too much for numeric formats in the export). One advantage is that you can use this as well, if
in future the Excel version is changed.

www.mapleprimes.com/blog/alec/the-eratosthenes-sieve

Unfortunately Alec has almost drifted off the forum ...

[.30000000, .50000000, .20000000]: evalf[1](%);
                           [0.3, 0.5, 0.2]

[.30000000, .50000000, .20000000]: convert(%,rational): evalf[1](%); 
                           [0.3, 0.5, 0.2]

[.30000000, .50000000, .20000000]: fnormal(%,3);

                        [0.300, 0.500, 0.200]

For me the function x^a is not defined in (0,0) as a continous limit, so setting it to a value
would be ok and reading it as exp of limit(ln(x)*x,x=0) I do not have problems with 0^0=1 as
convention.

here, for you to dig for the problem (data file is renamed, but the same) ...  :-)

in the standard interface it works, in the real interface it does not (Maple 11 or 10, in 9.5 it is fine)

It did not work for me either ... (both: Robert Israel's modified solution nor DJ's modification)

Here is it using some fitting (renaming your data file to surface_spline_data.txt):

<a href='http://www.mapleprimes.com/files/102_surface_spline_gamsiz.mws'>Download 102_surface_spline_gamsiz.mws</a><br/><a href='http://www.mapleprimes.com/viewfile/2529'>View file details</a>

PS: I hate the idiotic way the editor wants links and alternate text ...

This tells, that Maple uses Pi as symbol, but wants a numerical value,

try  Data[i,j,2]:= Data[i,j,2] * evalf( Pi/180 )

Put your solutions into a list, for example by enclosing into brackets

  L:= [ evalf[5](solve(K = S*F^n, F)) ].

The first element is L[1]

May be select( _x -> type(_x, positive), L) is also of interest,
that selects all the positive roots

you would need to provide an explicit model for z=f(r,theta), not only as an abstract sum over some lambda
otherwise a bivariate spline or similar may approximate your data (but I am not aware of handy worksheets
for that (only some solution by a guy named Beliakov in Application center, he provides a DLL, but no source
which is a mess [but to be found at http://www.deakin.edu.au/~gleb/liblip.html])

Edited to add: www.maplesoft.com/applications/app_center_view.aspx has a spline solution for such data
(NB: unfortunately it is not quite clear how to feed the data, so it is not very handy ... )

Edited again: and the very one who uploaded that mws sheet did it quite sloppy, for me it has faults, a version
not to be identified by Maple 11 and after running it it can not be saved ... what a mess to the author's work.

If A is your 2-dimensional Array then you just type in "A;" or "print(A);", that's all

If the array is too large you have to set the printable size, see above.

If the dimension is larger than 2 you can not do it (it is like visualizing a higher
dimensional cube on a sheet of paper)