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round off number

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~s.o.s~

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Failure as a human

Re: round off number

#11

Oct 15th, 2006

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Originally Posted by WaltP

I'm with bumsfeld on this one. You want as much precision as you can get throughout the program's calculations and only round for the display. You don't even want to round the number itself, just the display.

If you round prematurely, all your calculations will be slightly off. And the more calculations you do, the more inaccurate your answer.

It may be quite possible that the data rounded off is not used for calculations or used in calcultions which requires only the rounded off values. It could also be written to a file and used only for data analysis purposes, or maybe the OP had some other idea in his mind or maybe it was part of an assignment given at the college to test his coding skills, you never know.

I don't accept change; I don't deserve to live.

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WaltP

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Posting Sensei

Re: round off number

#12

Oct 15th, 2006

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Originally Posted by ~s.o.s~

It may be quite possible that the data rounded off is not used for calculations or used in calcultions which requires only the rounded off values. It could also be written to a file and used only for data analysis purposes, or maybe the OP had some other idea in his mind or maybe it was part of an assignment given at the college to test his coding skills, you never know.

True -- but with all the if...when...maybe's that get posted here (and you pointed out in this post), noone would get any answers because few would want to post a response based on all the if...when...maybe's to cover all bases. I will respond to what is directly posted and may make an educated guess as to the usage. If I guess wrong, then the OP obviously didn't communicate his problem/needs well enough. His fault, not mine.

So listen up, noobs! Post enough information that we don't have to guess at what you need to know. You need to tell us! That way us folks that are trying to help you pass your classes won't get into arguments like this one!
:p

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2) Tomorrow never comes

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Join Date: Jun 2006

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~s.o.s~

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Failure as a human

Re: round off number

#13

Oct 16th, 2006

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Originally Posted by WaltP

So listen up, noobs! Post enough information that we don't have to guess at what you need to know. You need to tell us! That way us folks that are trying to help you pass your classes won't get into arguments like this one!
:p ;)

lol.. :D I agree with you on that one, old buddies fighting over beginners is indeed not a good sight :)

I don't accept change; I don't deserve to live.

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Join Date: Sep 2006

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vbcielle

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Re: round off number

#14

Oct 16th, 2006

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Originally Posted by ~s.o.s~

lol.. I agree with you on that one, old buddies fighting over beginners is indeed not a good sight

im sorry guys if i make all of you confuse.... i want it to be round of in the function
because i'll use the returned value for another function

 Help with Code Tags 
 C Syntax (Toggle Plain Text) 
unsigned int CalculatePercentage(int TC,int PC){
return 100.0f*PC/TC;
}
unsigned int CalculatePercentage(int TC,int PC){
return 100.0f*PC/TC;
}

will the code be enough? even if i use unsigned int will i still get a decimal value and round it off?