Norm
- To: mathgroup at smc.vnet.net
- Subject: [mg67973] Norm
- From: Clausenator at gmail.com
- Date: Wed, 19 Jul 2006 05:21:13 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hi, I want to calculate a distance matrix, similar to (as poorly explained at) http://en.wikipedia.org/wiki/Distance_matrix I found out about the Function "Norm" in mathematica 5. Here is a little example. I want to calculate the distance between vectors {0,1} and {5,1}. The distance should be 5 Now, Norm[{{0., 1.}, {5., 1.}}, 2] results 5.10293 Norm[{{0., 1.} - {5., 1.}}, 2] results 5.0 According to the documentation I have (Mathematica Help Browser, search for "Norm" under "Built-in Functions") the version with the comma is documented. I like the solution with the dash better. Which one is it? In other words, is there some Wolfram description or can you explain the difference? Thanks for your help, Claus
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