How can I get a fractional iteration value?

If you look at this code - the number of iteration n is the iteration counter but for me it is also the seconds of the system (with max time 8 sec). I need the n (or the time in sec, which can be fractional) for which ts = 1000 inside the loop. Please give some ideas.

a = 5;
b =  22;
c = 13;
d = 4;
ts = 50+ 4*b;
stamp = zeros(1,8);
for n = 1:8
   ta = 1+(b+a)/n*c;
   ts = ta +ts; 
   b = b+1;
   a = a + b/2;
   c = c-.5;
   stamp(n) = ts; 
end 
disp(d)
disp(a)

Answer 1

[Stephen23]

You can iterate over fractional values:

for k = 1./(2:5)
    disp(k)
end

However if you are using the k values as indices this is not possible. In this case you have two possibilities:

1) define a vector before the loop, and index into this:

V = 1./(2:5);
for k = 1:numel(V)
    disp(V(k))
    ... code using k as an index
end

2) calculate the fractional value from k

for k = 1:4
    disp(1/(k+1))
    ... code using k as an index
end