Script that calculates the following sum

Write a script that will calculate the convertage series of S= starting at n=0. This series will converge on S=2. That is 1/1 +1/2 +1/4.... The script will terminate whn 2 >S>=1.990 and it will print a sentence that contains the values for S and n. I've done this so far but I'm getting errors. Can you please help me?\

n=0
S=0
while S > 1.990
    S=1/(2^n)+S
    n=n+1
    S(n)=S
    
end

[dpb]

Look at your logical test carefully...

[Torsten]

... and remove the line

S(n) = S

Answer 1

[Jan]

n=0
S=0              % Now S is a scalar
while S > 1.990  % In the first iteration you compare a scalar
                 % But you do not mean >, but <= !
    S=1/(2^n)+S  
    n=n+1
    S(n)=S       % If n=2, you assign: S(2)=S, but for n=3:
                 % it is: S(3) = S and S is a [1 x 2] vector
end

Store the current value of S in a separate variable, e.g. SV, which is a vector then.