Dave wrote:
Dave wrote:
Tom Donaly wrote:

So in the limit, as the number of radiators is increased to infinity,
the amount of power it would take to produce the measured sum would
go to zero. Nice logic.
73,
Tom Donaly, KA6RUH


Mathematica 6.0 for Sun Solaris SPARC (64-bit)
Copyright 1988-2007 Wolfram Research, Inc.

In[1]:= 0 Infinity

Infinity::indet: Indeterminate expression 0 Infinity encountered.

Out[1]= Indeterminate
0 Infinity
is interpreted as zero times infinity


That's the rule all right. Notice, however, that I said, "in the limit."
Does Mathematica teach you about taking limits and such?
73,
Tom Donaly, KA6RUH