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Re: newbie question on functions

• To: mathgroup at smc.vnet.net
• Subject: [mg51794] Re: newbie question on functions
• From: AES/newspost <siegman at stanford.edu>
• Date: Tue, 2 Nov 2004 02:05:23 -0500 (EST)
• References: <cm22t7$gk1$1@smc.vnet.net> <cm4r7j$6lm$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

In article <cm4r7j$6lm$1 at smc.vnet.net>,
 David Bailey <dave at Remove_Thisdbailey.co.uk> wrote:

> Yes, of course you can save the result of a calculation. For example:
> 
> result=intensity[4.,5.]


For the original "newbie" poster:

For newbies, or less expert users like me, it's easy to think that 
something like

    AppendTo[list, expr]

is a "command" that will do what it says: append expr to list.  Takes a 
few bad experiences to realize that you actually have to say

    list = AppendTo[list,expr]

Same general principle applies more broadly.

• Follow-Ups:
  • Re: Re: newbie question on functions
    • From: DrBob <drbob@bigfoot.com>
  • Re: Re: newbie question on functions
    • From: Christopher Purcell <christopherpurcell@mac.com>