1167: u Calculate e
内存限制：128 MB
时间限制：1.000 S
评测方式：文本比较
命题人：
提交：184
解决：73
题目描述
A simple mathematical formula for e is
e=Σ0<=i<=n1/i!
输入
No input
输出
Output the approximations of e generated by the above formula for the values of n from 0 to 9. The beginning of your output should appear similar to that shown below.
样例输入 复制
/*no input*/样例输出 复制
n e
- -----------
0 1
1 2
2 2.5
3 2.666666667
4 2.708333333
...