fabs()function

[payam.a]

Hi dear friends;
please explain for me what does fabs() function do?
if you can please attach a code that is contained fabs() function's job.
thanks
payam

[Aereshaa]

It gives the absolute (unsigned) value of a floating-point number.

fabs(-0.3) // 0.3
fabs(+0.3) // 0.3

[payam.a]

thanks my dear friend;
I didn't undrestand what you mean by absolute?
can you explain more for me?
thanks
payam

[Aereshaa]

Well, I guess the best way to explain it is by giving source:

unsigned double fabs(signed double n){
    if(n >= 0)return n; //if positive, return without ant change
    else return 0 - n; //if negative, return a positive version
    }

So, it strips away the sign, leaving an unsigned version.

[payam.a]

thanks dear friend for your fast reply;
let me know if I am wrong about your reply.
you mean that with fabs() function bouth positive and negativ numbers will be positive.
thanks
payam

[Aereshaa]

That's exactly right.

[payam.a]

thanks dear friend that you answer my questions.
now I have a new question :
what are the differences between abs() and fabs() functions?
because you know abs() function do the same job.
thanks
payam

[MeTh0Dz]

DELETED

Yeah, Slice Ownz Your Posts.

Get over it

/Talk

[dargueta]

MeTh0Dz, what is your problem? Instead of calling people various names which you're too "polite" to print in full, just shut up and help them or take your attitude somewhere else.

[MeTh0Dz]

To polite to print in full? See there you go again, commenting when you don't even know what you are talking about. The site automatically blocks some of the words I like to use bud. All I am saying is there are too many people who won't even go look up stuff on their own, they just want people to hand them information.