Thank you, Raymond -----Original Message----- From: Robert Klemme [mailto:shortcutter / googlemail.com] Sent: Monday, January 15, 2007 7:00 To: ruby-talk ML Subject: Re: how to translate base 10 number into base 2 number On 15.01.2007 12:54, Jacob, Raymond A Jr wrote: > Is there a way to pad the result with leading zeros i.e. 4.to_s(2) > "100" irb(main):004:0> "%08b" % 4 => "00000100" irb(main):005:0> sprintf "%08b", 4 => "00000100" robert