MathGroup Archive: May 2010 [00333]

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Re: How to Enable Automatic Recalculation

To: mathgroup at smc.vnet.net
Subject: [mg109849] Re: How to Enable Automatic Recalculation
From: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>
Date: Wed, 19 May 2010 20:15:02 -0400 (EDT)
References: <ht0gf2$8q$1@smc.vnet.net>

Hi Vic,

Easy. Use SetDelayed i.e., := instead of Set (=). Set calculates the
value of b at definition time whereas SetDelayed causes the value if b
to be calculated when b is actually used. This is actually very basic
stuff that is easily found in the manual.

Cheers -- Sjoerd

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