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DOS批处理 & 脚本技术（批处理室） » [Numerical Calculation]Square roots of integers from 1 to 99

Floor1　523066680	Posted 2008-09-20 17:25
银牌会员　Posts 1,133　Credits 2,362
Also published on bathome http://bbs.bathome.cn/viewthread.php?tid=1791&page=1&extra=page%3D1 If there are decimals, keep 3 decimal places. @echo off :action set /p input="(1-99):" if "%input%"=="" goto :action set /a a=0,n=0 :a set /a a+=1,a1=0 :a1 set /a a1+=1,test=(n10+a1)(n10+a1) if %test% equ %input% (echo %a1% &pause &goto :end) if %test% lss %input% (goto :a1) set /a n=n10+a1-1,input=100 if %a% lss 4 goto :a echo %n:~0,1%.%n:~1% pause>nul :end echo,&set input= goto :action [ Last edited by 523066680 on 2008-9-21 at 07:29 AM* ]

Floor2　lxmxn	Posted 2008-09-21 09:08
版主　Posts 4,938　Credits 11,386
That's good, it has been collected into the top-sticked Classic Thread Classification Index in Batch Processing Room.

Floor3　BC	Posted 2008-09-21 09:12
中级用户　Posts 175　Credits 338
Take a seat... This time it's much more efficient

Floor4　523066680	Posted 2008-09-21 09:18
银牌会员　Posts 1,133　Credits 2,362
Principle: Compare digit by digit. For example, input 2. 00=0 11=1 22=4 4>2 so the first digit is 1. Then 1.11.1 1.21.2 1.31.3…… 1.41.4 1.51.5 = 2.25 >2 so take 1.4 And so on. Everyone is puzzled: Batch processing has no decimals. Then calculate with integers, and then add a decimal point to it.

Floor5　523066680	Posted 2008-09-21 09:25
银牌会员　Posts 1,133　Credits 2,362
Thanks for everyone's support! I love cn-dos!