This might be help full

http://stackoverflow.com/questions/884512/how-to-cap-and-round-number-in-ruby

On Wed, Sep 12, 2012 at 3:16 PM, Jim Ruther Nill <[email protected]> wrote:

>
>
> On Wed, Sep 12, 2012 at 7:40 PM, keerthi priya <
> [email protected]> wrote:
>
>>  This is my console code
>>
>> irb(main):001:0> (2.08*100).round / 100.0
>> => 2.08
>>
>> but i what i was expecting is like if i give input as 2.08 i need my
>> output as 2.1 and i give i/p as 2.04 i need my output as 2.0
>
>
> you just need to change 100 to 10
>
> 1.9.3p194 :004 > (2.08 * 10).round / 10.0
>  => 2.1
>
>
>
>>
>>
>>
>> On Wed, Sep 12, 2012 at 3:02 PM, Jim Ruther Nill <[email protected]>wrote:
>>
>>>
>>>
>>> On Wed, Sep 12, 2012 at 4:25 PM, keerthi priya <
>>> [email protected]> wrote:
>>>
>>>> Hi all
>>>> i am trying to use round method if have a value 2.08 i want it as 2.1
>>>> and it worked in 1.9.2 but not in 1.8.7 is there any other way of doing it.
>>>>
>>>>
>>>> USING 1.9.2
>>>>
>>>> 1.9.2p320 :001 > 2.08.round(1)
>>>>  => 2.1
>>>> 1.9.2p320 :002 > 2.04.round(1)
>>>>  => 2.0
>>>>
>>>> USING 1.8.7
>>>>
>>>> irb(main):001:0> 2.08.round
>>>> => 2
>>>> irb(main):002:0> 2.08.round(1)
>>>> ArgumentError: wrong number of arguments (1 for 0)
>>>>     from (irb):2:in `round'
>>>>     from (irb):2
>>>>     from :0
>>>> i can able to use round but not with one decimal
>>>>
>>>> Can any tell how can i get round(1) in 1.8.7
>>>>
>>>
>>> I think this thread explains vijaya's answer better
>>> http://stackoverflow.com/questions/2054217/rounding-float-in-ruby
>>>
>>>
>>>>
>>>> Cheers,
>>>>
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>>>>
>>>
>>>
>>>
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