9+0.9+0.99+0.999最简单的算法要最简单的算法哦!谢啦!
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/17 16:06:34
![9+0.9+0.99+0.999最简单的算法要最简单的算法哦!谢啦!](/uploads/image/z/65795-59-5.jpg?t=9%2B0.9%2B0.99%2B0.999%E6%9C%80%E7%AE%80%E5%8D%95%E7%9A%84%E7%AE%97%E6%B3%95%E8%A6%81%E6%9C%80%E7%AE%80%E5%8D%95%E7%9A%84%E7%AE%97%E6%B3%95%E5%93%A6%21%E8%B0%A2%E5%95%A6%21)
9+0.9+0.99+0.999最简单的算法要最简单的算法哦!谢啦!
9+0.9+0.99+0.999最简单的算法
要最简单的算法哦!谢啦!
9+0.9+0.99+0.999最简单的算法要最简单的算法哦!谢啦!
9+3-(0.1+0.01+0.001)=12-0.111=11.889
当最后一个数有n个9,则算法如下:
9+n-(0.1+0.01+...+0.0...01)=9+n-0.1...1
n-1个0 n个1
你觉的这样行吗
9+0.9+0.99+0.999
=9+1+1+1-0.1-0.01-0.001
=12-0.111
=11.889
9+0.9+0.99+0.999
=9+1-0.1+1-0.01+1-0.001
=12-0.111
=11.889
(10+1+1+1)-1-0.1-0.01-0.001=11.889