Re: Why Round[5/2]=2?
- To: mathgroup at smc.vnet.net
- Subject: [mg17502] Re: [mg17469] Why Round[5/2]=2?
- From: "Andrzej Kozlowski" <andrzej at tuins.ac.jp>
- Date: Mon, 10 May 1999 01:44:34 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Round rounds numbers of the form x.5 toward the nearest even integer: In[2]:= Round[3.5] Out[2]= 4 In[3]:= Round[4.5] Out[3]= 4 -- Andrzej Kozlowski Toyama International University JAPAN http://sigma.tuins.ac.jp http://eri2.tuins.ac.jp ---------- >From: xingjing at calvin.math.vt.edu (Xing Jing Li) To: mathgroup at smc.vnet.net >To: mathgroup at smc.vnet.net >Subject: [mg17502] [mg17469] Why Round[5/2]=2? >Date: Sun, May 9, 1999, 5:44 PM > > While I am working on the exercises on the book _Power Programming > with Mathematica_ I noticed that Round[5/2] gave me 2. It is obviously > wrong. But how could this happen? I am using Mathematica 3.0.1 on a > Macintosh. I also tried the command"Round[5/2]" on other Macintoshes > and PCs and all them gave me 2. Is this some kind bug? Other numbers I > tried gave me the answers I expected. > > Can some one tell me what is going on? > > Thanks, > > Xing Jing Li