So why not truncate the lat/long to, say, 6 digits, and then do your comparison 
to see if the markers are in the same spot?

-G

On Apr 12, 2011, at 3:21 AM, Amit Kumar wrote:

> The issue is not about nanometers... I am using that to identify if there is 
> a marker already in the mentioned spot, but since the values are not same, I 
> see more markers, which is unacceptable.
> On 12-Apr-2011, at 1:17 PM, Rossko wrote:
> 
>>> I am using gmaps v3.4, and when i am adding a new marker at say location
>>> 57.08851533/25.53222656, it is getting added at 57.08851533/25.5322265600002
>> 
>> You do realise that is just a few nanometres away?  The background
>> maps are not that accurate.
>> 
>>> how do i avoid that???
>> 
>> You can ignore it altogether, if you want to trim the number of
>> decimal places for display use ordinary javascript e.g.
>> http://groups.google.com/group/google-maps-js-api-v3/browse_thread/thread/98fa38b216888995/444e8bc133f7b8c4
>> 
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