Full Discussion: division problem
division problem Post 18438 by Jimbo on Thursday 28th of March 2002 10:21:38 AM
03-28-2002
Yes, I like awk for working with numbers, particularly when I am dealing with other than whole integers.

The answer of zero that you are getting is correct, but simply truncated to a whole integer. You can force a certain number of decimal places by adding zeros to the numerator. But again, the result will be truncated, not rounded:

a=3
b=17
let x=\${a}0000/\$b
echo \$x
1764
 Jimbo

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## Problem in division

hi I am having two variables namely a=7 & b=8. I have to subtract these two variables. I am using the command c=`expr \$a / \$b` When I check the value of c, it comes out to be zero. Please help. Regards Rochit

## division by 0 error

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## how to check for division by zero

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## hash map Illegal division by zero problem

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## division by zero

Hello, I am searching for a way to calculate for example 10/100 within a shellscript and the result should be 0.1 and not just 0. Every alternative i tried just results 0 Thank you in advance 2retti

## awk: division by zero

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## Division problem -Awk

input one two three four 0 0 0 10424 0 102 0 15091 1 298 34 11111 0 10 0 1287 scripts awk 'NR>1{print (\$1/\$2) / (\$3/\$4)}' awk 'NR>1{ if (\$1 ||\$3 ||\$2|| \$4 == 0) print 0; else print ((\$1/\$2)/(\$3/\$4))}' error awk: division by zero input record number 1, file rm source line...

## Help in division

hi, The below commands result only the whole number(not giving the decimal values). pandeeswaran@ubuntu:~\$ echo 1,2,3,4|sed 's/,/\//g'|bc 0 pandeeswaran@ubuntu:~\$ echo 1000,2,3|sed 's/,/\//g'|bc 166 How to make it to return the decimal values? Thanks

## Division of wc output

I have a function that outputs 3 lines for each result and I want to know how many results there are. so for example function | wc -l 24 but I want to see the result 8. so is there a easy way to divide the result?
```DIV(3)							     Linux Programmer's Manual							    DIV(3)

NAME
div, ldiv, lldiv, imaxdiv - compute quotient and remainder of an integer division

SYNOPSIS
#include <stdlib.h>

div_t div(int numerator, int denominator);
ldiv_t ldiv(long numerator, long denominator);
lldiv_t lldiv(long long numerator, long long denominator);

#include <inttypes.h>

imaxdiv_t imaxdiv(intmax_t numerator, intmax_t denominator);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

lldiv():
_XOPEN_SOURCE >= 600 || _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
or cc -std=c99

DESCRIPTION
The div() function computes the value numerator/denominator and returns the quotient and remainder in a structure named div_t that contains
two integer members (in unspecified order) named quot and rem.  The quotient is rounded toward zero.  The result  satisfies  quot*denomina-
tor+rem = numerator.

The ldiv(), lldiv(), and imaxdiv() functions do the same, dividing numbers of the indicated type and returning the result in a structure of
the indicated name, in all cases with fields quot and rem of the same type as the function arguments.

RETURN VALUE
The div_t (etc.) structure.

CONFORMING TO
SVr4, 4.3BSD, C89. C99.	The functions lldiv() and imaxdiv() were added in C99.

EXAMPLE
After

div_t q = div(-5, 3);

the values q.quot and q.rem are -1 and -2, respectively.

abs(3), remainder(3)

COLOPHON
This page is part of release 3.44 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
be found at http://www.kernel.org/doc/man-pages/.

2012-04-17								    DIV(3)```

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