The code below sums up the elements of the array and displays the result upto 2 decimal places.
function dailyMaterialSum = MaterialSum (weightArray)
% Write a function that sums the elements of the weightArray
% and prints the result to 2 decimal points
dailyMaterialSum = sum(weightArray);
fprintf('%.2f',dailyMaterialSum);
end
Also please follow the link below for the round function which might be useful too.
