gaokao 2019 Q9

gaokao · China · national-III-science_gkztc 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]{35e1ed43-6f5c-4d51-99b3-11f2215f3817-03_620_222_255_925}\\
A. $2 - \frac { 1 } { 2 ^ { 4 } }$\\
B. $2 - \frac { 1 } { 2 ^ { 5 } }$\\
C. $2 - \frac { 1 } { 2 ^ { 6 } }$\\
D. $2 - \frac { 1 } { 2 ^ { 7 } }$