Script that calculates the following sum

Question

Juan Zegarra 2019-4-28

1
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https://ww2.mathworks.cn/matlabcentral/answers/459033-script-that-calculates-the-following-sum

回答： Jan 2019-4-29

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

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dpb 2019-4-28

Look at your logical test carefully...

Torsten 2019-4-29

... and remove the line

S(n) = S

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Answer 1

Jan 2019-4-29

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https://ww2.mathworks.cn/matlabcentral/answers/459033-script-that-calculates-the-following-sum#answer_372758

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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