The answer is not correct in solving the problem.

Hello! I have a signal in the range of length from 1 from 900 (the values ​​themselves are floating from 20 to 826), and its depth is in the same range of length (depth from 15 to 24).

dimensions: siglan 1x900

depth1x902

d 1x901

first couple of answers : 30192,1351351351(signal(1)=816, depth(1)=37 metr, d(1)=38); 30932,1351351351 30303,1351351351

[d,signal]=min(DataNoSignal02022003)
for chek = 1:length(d)-1
    nomsignal1{i}=(signal(i)*depth(i)-2./depth(i));  % Signlan number at -2 meter depth
end

nomsignal1(1) =3.0192e+04

and should 771

[Bjorn Gustavsson]

If you want a result of 771 from some combination of 816 37 38 your equation for nomsignal is clearly wrong. You have for those components: 816*37 - 2/37. You better fix that expression. Further your loop-variable are chek, and as written you will only get an assignement for the value of i that i has when entering the loop.