From: Ak 756 <macro.peng@...>
Date: 2007-03-26T14:00:24+09:00
Subject: Re: how to tranlsate number to binary?

Gavin Kistner wrote:
> On Mar 25, 10:06 pm, Joel VanderWerf <v...@path.berkeley.edu> wrote:
>> Ak 756 wrote:
>> > I want my function to give output 100100000011 for input 903. Where
>> > '1001','0000','0011' is the binary value for 9,0,3
>> > Is there efficient way to do this?
>>
>> "903".split("").map{|s| "%04b" % s.to_i}.join
>> => "100100000011"
> 
> No need to call to_i on the digit strings:
> 
> irb(main):002:0> 903.to_s.split('').map{|n| "%04b" % n }.to_s
> => "100100000011"

Woo.., that's really what's I want.
Thanks you guys-:)

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