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BartC  
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 More options May 3 2012, 11:23 am
Newsgroups: comp.lang.c
From: "BartC" <b...@freeuk.com>
Date: Thu, 3 May 2012 16:23:26 +0100
Local: Thurs, May 3 2012 11:23 am
Subject: Re: difference between statement
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"ashu" <ashishmoury...@gmail.com> wrote in message

news:b101f606-7c9f-49e0-9784-b5300eacc86d@k10g2000pbk.googlegroups.com...

> #include<stdio.h>
> #include<conio.h>

> main()
> {
>    float fahr,celsius;

>      celsius= -17;
>      fahr=celsius * (9/5) + 32;
>      printf("%3.1f\n",fahr);

> getch();
> }
> Result is 15.0
> but when i write: fahr=celsius * 9/5 + 32;
> result is : 1.4

Using floating point constants instead, such as 9.0/5.0, otherwise integer
arithmetic can sometimes give these funny results (9/5 is 1 according to C).

--
Bartc


 
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