写出无理数 Л=3.141 592 653…… e=2.718 281 828…… 的有理数不足近似值数列与过剩近似值数列,使其精确到1,0.1,0.01,0.001,……
问题描述：
写出无理数 Л=3.141 592 653…… e=2.718 281 828…… 的有理数不足近似值数列与过剩近似值数列,
使其精确到1,0.1,0.01,0.001,……
答
兀=3.1415926535897932384626
答
Л=3.141 592 653……
使其精确到1,0.1,0.01,0.001...
分别是3 ,3.1,3.14,3.142 .3.1416.
e=2.718 281 828……
使其精确到1,0.1,0.01,0.001...
分别是3 ,2.7 2.72 2.718.2.7183.
其实就是满五进1,不足舍去!
像这样的问题自己多尝试下,下次才会的!