The Scan Built-In Function
- To: mathgroup at smc.vnet.net
- Subject: [mg46313] The Scan Built-In Function
- From: Harold.Noffke at wpafb.af.mil (Harold Noffke)
- Date: Fri, 13 Feb 2004 21:58:10 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Mathematica 5.0.1 on Windows 2000
When I studied Scan, I found the following example reasonable ...
In:= Scan[ Print, a x^2 + b x, Infinity ]
Then I modified the example to this ...
In:= Scan[ Print, a (x + 2) b*y, Infinity ]
2 + x
Then I got confused.
Here's my question. In In, why does Mathematica not show any
expressions which use "+"? In abstract group theory, there is no
distinction between "+" and "*", and this is what confuses me when I
think about Scan from the group theory perspective.
Can anyone guide my thinking back onto the Mathematica track?
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