@acer Thank you. :)

@acer Thank you very much acer. Is exactly what I was looking for.

In the exaple I have found this: Array(1..1, 1..1, 1..2, [[[x,y]]]) what does it do?

Problem self-solved.

So for the next:

mytable := A;

sortedIndices := sort([indices(mytable, 'nolist')]);

new := 0;

for jj to nops(A) do

new := mytable[sortedIndices[jj]];

newE[jj] := new

end do

@tomleslie 

ok I see. Thank you.

So in this way the problem will be harder then expected. P_tot_nett is alwasy constant in the for cycle and I have to change strategy.

My objective is to calculate the value of : '' E_tot_net_Point '', which you can see in the ''Energy'' graph, at time = t1 (for example). Is there a way to find the coordinates (time, E_tot_net_Point) not manually fromthe graph but with a code?

Thank you

@tomleslie 

Thankyou for the answer @tomleslie .

I have tried to use eval (Int), but the result seems not correct compare to the previous result with the for cycle. You can see it here: MP.mw