Int(Dirac(sin(x)),x=-1..1); value(%); returns unevaluated as well (Maple 2020)

The file seems to be too large for the amount of data (and contains formulas as well). I saved it again using Libre Office, now it is 500 KB instead of 12 MB. May be you try again with that. Also you may check whether the versions of Maple and Excel are valid as pairing.

Subset_test1.zip

Edited: for me then it works (no need to change country settings) using Maple 2020 with Standard Interface

with(ExcelTools);
Q:=Import("d:\\temp\\Subset_test1.xlsx"); # giving a 1300 x 90 Matrix

You may have to convert the date format, have not looked for you formula fields

Just a thought: if you work with Windows settings for Italy (?) then time format and floating point numbers are not what Maple is expecting. You may (temporarily) change to US for your Windows (or process data through editing which is a little pain).

I have not tested it for your case.

I do not think that does make sense, look at the graphics at https://en.wikipedia.org/wiki/History_of_the_Internet#Rise_of_the_global_Internet_(late_1980s/early_1990s_onward) which is for hosts, not users. Hence I guess it is a "S-shaped" curve and in logarithmic scaling it may have a chance to be roughly quadratic "at current end". And you may wish to have some (guessed) data, of course.

And in the ghist of mmcdara

Fac:= n -> mul( i, i = 1 .. n ); # https://rosettacode.org/wiki/Factorial#Maple

Fac(5)=5!;
                              120 = 120

@mmcdara Thank you, but it's Maple's solution :-) Unfortunatly quite hidden, I just remembered that I once used it

For your question: sorry, I do not know an answer for that.

@Carl Love I have tried for all divisors k of 2^2*5^2 (so 2^k sides), only k=4 formally rejects. Thus the interpretation through dices fails, at least the samples are too small.

@Carl Love , thank you for addressing that issue - then the test is almost useless here, sigh

sigh            ...

@vv I think it is beta, not Pi/2 - beta (take beta=Pi/8 as example), no?

Do both systems use the same definition for JacobiSN ?

@vv but how to explain the minus sign?

@Christopher2222 

Dito: For me that does not work (Maple 2017). In earlier days I used Excel on finacial data, because it worked and was more easy to use, especially for (embedded) tables

May be you try the sources at https://data.europa.eu/euodp/en/data/dataset/covid-19-coronavirus-data

For example in C++: http://www.cplusplus.com/reference/cmath/round/

You may want to get used to that

phi*W: subs(Zeta=zeta, %): [Re(%), Im(%)]:
plot(%, zeta = 0 .. 2*Pi, color=[red, blue]);