@don it is, actually i wanted to give a smaller example so wrote like that.

@arpit thanks, powl() solved the problem.

On Mon, Mar 26, 2012 at 7:00 PM, Don <dondod...@gmail.com> wrote:

> Why use pow to compute a square when * is significantly faster?
> Don
>
> On Mar 26, 6:09 am, shady <sinv...@gmail.com> wrote:
> > Hi,
> >  i am using pow() function in C++ to calculate square of 999999937, but
> to
> > my amazement it is giving one less than actual value. Since it returns
> > double, i am adding 10e-5 to get the correct value, but still no
> > improvement. Any idea ?
>
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