[root@localhost ~]# bc
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
1-2+4
3
8/5
1
scale=4 //scale设置小数点的位数
8/5
1.6000
quit //回到命令提示字符的环境
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
1-2+4
3
8/5
1
scale=4 //scale设置小数点的位数
8/5
1.6000
quit //回到命令提示字符的环境
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/25281640/viewspace-704530/ ，如需转载，请注明出处，否则将追究法律责任。
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