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Approximate Zero Times A Symbol
 To: mathgroup at smc.vnet.net
 Subject: [mg127060] Approximate Zero Times A Symbol
 From: "djmpark" <djmpark at comcast.net>
 Date: Wed, 27 Jun 2012 04:11:51 0400 (EDT)
 Deliveredto: lmathgroup@mailarchive0.wolfram.com
What is the justification for the following?
0. x + 1. y
0. + 1. y
I want to display a dynamic weighted sum of x and y and sometimes one of the
coefficients becomes zero. I would like to keep both terms (for a steady
display) and format with NumberForm. If Mathematica is going to drop the x,
why doesn't it at least also drop the approximate zero?
If I use SetPrecision we obtain:
SetPrecision[0. x + 1. y, 10]
1.000000000 y
which is at least more consistent, but not what I want either.
David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/index.html
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