在bc中除法时如何得到十进制数? [英] How to get a decimal number when dividing in bc?

问题描述

我需要用 'bc' 来划分一个数，不仅要给我底数，还要给我余数.例如，如果我做 '5/2'，'bc' 会给我 '2'.我真的想要像2.5"这样的东西

I need 'bc' to divide a number and give me not only the floor but also the remainder. For instance 'bc' gives me '2' if I do '5/2'. I'd really want something like '2.5'

也许这根本不可能?

推荐答案

scale = 20

它设置小数位数.

$ 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'. 
355/113
3
scale=20
355/113
3.14159292035398230088
quit
$

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