MathGroup Archive: November 2009 [00234]

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What is going on!?!

To: mathgroup at smc.vnet.net
Subject: [mg104688] What is going on!?!
From: Joe Hays <joehays at vt.edu>
Date: Sat, 7 Nov 2009 06:46:03 -0500 (EST)

Can anyone tell me why the output is not a simple "10" instead of "10 Null"?

In[3]:= x = 0;
For[i = 1, i <= 10, i++,
  x = x + 1;
  ] x

Out[4]= 10 Null

Follow-Ups:
- Re: Re: What is going on!?!
  - From: Joe Hays <hays.joe@gmail.com>
- Re: What is going on!?!
  - From: Murray Eisenberg <murray@math.umass.edu>
- Re: What is going on!?!
  - From: Stern <nycstern@gmail.com>
- Re: What is going on!?!
  - From: Leonid Shifrin <lshifr@gmail.com>

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