Science Talk Science Talk    FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Forums Science Forums Biology Math Astronomy Physics Technology Chemistry Social Sciences History Psychology Philosophy Sociology Linguistics Religious Studies Economics Man Woman Ethno Ask an Expert World Records Society Issues Education People Alternative Science proof : how to?          Science Talk Forum Index -> Mathematics View previous topic :: View next topic   Author Message gooy Guest Posted: Thu Jul 10, 2008 4:07 am    Post subject: proof : how to? This sounds simple, but just wanted to get a start on. I have a distance function, which measures how close/far two objects are, call it dist(a,b) How do I prove the following for this function dist(a,b) >= 0 dist(a,b) = dist(b,a) dist(a,a) = 0 Please help. Back to top   Ads Advertising Sponsor The World Wide Wade Guest Posted: Thu Jul 10, 2008 9:48 am    Post subject: Re: proof : how to? In article <0ce6f79b-2ee5-4219-8171-c36194aba788@c58g2000hsc.googlegroups.com>, gooy <ericbae@gmail.com> wrote: Quote: This sounds simple, but just wanted to get a start on. I have a distance function, which measures how close/far two objects are, call it dist(a,b) How do I prove the following for this function dist(a,b) >= 0 dist(a,b) = dist(b,a) dist(a,a) = 0 Please help. Tell us what this function is fer cryin out loud. Back to top   Ads Advertising Sponsor Robert Israel Guest Posted: Thu Jul 10, 2008 9:53 am    Post subject: Re: proof : how to? Quote: This sounds simple, but just wanted to get a start on. I have a distance function, which measures how close/far two objects are, call it dist(a,b) How do I prove the following for this function dist(a,b) >= 0 dist(a,b) = dist(b,a) dist(a,a) = 0 Please help. Typically these follow pretty easily from the definition of "dist". But without knowing how your particular "dist" is defined, it's hard to help. -- Robert Israel israel@math.MyUniversitysInitials.ca Department of Mathematics http://www.math.ubc.ca/~israel University of British Columbia Vancouver, BC, Canada Back to top   Ads Advertising Sponsor Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         Science Talk Forum Index -> Mathematics All times are GMT Page 1 of 1   Jump to: Select a forum Science Talk----------------Science TalkAstrologyNanotechnologySETISociology-- Elections-- LibertarianCreationismMathematicsPolitics  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Australian Debt Consolidation Experts medical insurance Wedding Annunci di escort e accompagnatrici a Rimini, Padova, Treviso, in Riviera Adriatica, in Versilia ... Expatriate Swingers Loans life insurance Make Your Own Website Cheap phone calls to Canada Long island Cleaning service toxic mold UK Swingers Genuine Contacts Site Janitorial Supplies bissell Parts 192 Attacks blocked Powered by phpBB © 2001, 2005 phpBB Group