gaokao 2019 Q9

gaokao · China · national-III-arts Fixed Point Iteration
9. Executing the flowchart below, if the input $\varepsilon$ is 0.01 , then the output value of $s$ equals [Figure]
A. $2 - \frac { 1 } { 2 ^ { 4 } }$
B. $2 - \frac { 1 } { 2 ^ { 5 } }$
C. $2 - \frac { 1 } { 2 ^ { 6 } }$
D. $2 - \frac { 1 } { 2 ^ { 7 } }$
Let $S _ { n }$ denote the sum of the first $n$ terms of an arithmetic sequence $\left\{ a _ { n } \right\}$. Given $S _ { 4 } = 0$,
9. Executing the flowchart below, if the input $\varepsilon$ is 0.01 , then the output value of $s$ equals\\
\includegraphics[max width=\textwidth, alt={}, center]{a4af1979-49a3-49ee-a522-f6f2c82dc334-02_624_227_1231_918}\\
A. $2 - \frac { 1 } { 2 ^ { 4 } }$\\
B. $2 - \frac { 1 } { 2 ^ { 5 } }$\\
C. $2 - \frac { 1 } { 2 ^ { 6 } }$\\
D. $2 - \frac { 1 } { 2 ^ { 7 } }$