From: Florian Gross <flgr@...>
Date: 2004-09-23T03:29:35+09:00
Subject: Re: negative numbers and binary formats

Paul wrote:

Moin!

> Im trying to take a negative integer value, convert it to its binary
> equivalent, and save its hex value
> 
> -7 -> 1111 1001 -> F9

Does this help?

irb(main):032:0> [-7].pack("c").unpack("H*").first
=> "f9"

> Thanks
> Paul

Regards,
Florian Gross