문제
e는
\[e=\sum_{i=0}^{n} {\frac{1}{i!}}\]
이다. 여기서 n은 무한대이다.
매우 작은 n에 대해서, e의 근사값을 구해보자.
출력
아래 결과와 같은 형식으로 e의 근사값을 n = 0부터 9까지 출력한다.
예제 출력 1
n e
- -----------
0 1
1 2
2 2.5
3 2.666666667
4 2.708333333
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