View Single Post
  #1   Spotlight this post!  
Unread 14-01-2007, 22:15
Michael Hill's Avatar
Michael Hill Michael Hill is offline
Registered User
FRC #3138 (Innovators Robotics)
Team Role: Mentor
 
Join Date: Jul 2004
Rookie Year: 2003
Location: Dayton, OH
Posts: 1,567
Michael Hill has a reputation beyond reputeMichael Hill has a reputation beyond reputeMichael Hill has a reputation beyond reputeMichael Hill has a reputation beyond reputeMichael Hill has a reputation beyond reputeMichael Hill has a reputation beyond reputeMichael Hill has a reputation beyond reputeMichael Hill has a reputation beyond reputeMichael Hill has a reputation beyond reputeMichael Hill has a reputation beyond reputeMichael Hill has a reputation beyond repute
Negatives in Binary

I'm reading a book on Fortran 90/95 right now, and I was wondering, in general math, how would you go about making a binary number negative without a given bit length? For example, how would I know 1110111101 was -67 rather than 957? I remember something about the leftmost bit being 1, it's negative, and if it's 0, it's positive. But how would I know if 1011 is 11 or -5?
Reply With Quote