subtract values inside a array

any help will be great. Thank you

Answer 1

[Stephen23]

MATLAB code should be beautiful, simple, and efficient:

>> V = [12;2;6;8;6;2;12];
>> 50+cumsum(-V)
ans =
   38
   36
   30
   22
   16
   14
    2

[Mohamed Musni]

Thank you very much. have a nice day

Answer 2

[Birdman]

Not the most efficient, but a solution:

init=50;
a=[init 12 2 6 8 6 2 12]
for i=1:numel(a)-1
    val=a(1)-a(2);
    b(i)=val;
    a(1)=[];
    a(1)=val;
end
disp(b)

[Mohamed Musni]

Thank you very much. this will help me a lot. have a nice day!

Answer 3

[Mohammed Bahubayl]

function output =difff(x)
  intial=50;
  output=[];
  for i=1:length(x)
      output(end+1)=intial-x(i);
      intial=output(end);
  end

    end

[Mohamed Musni]

thank you very much. have a nice day