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Multiplication by 0.0

• To: mathgroup at smc.vnet.net
• Subject: [mg24126] Multiplication by 0.0
• From: Brian Higgins <bghiggins at ucdavis.edu>
• Date: Wed, 28 Jun 2000 02:11:45 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Dear Mathgroup,

Consider the following:
In[49]:=0*a
Out[49]=0
 Now if we replace 0 with 0.0
In[51]:=0.0*a
Out[51]=0.*a
If we set the precision
In[52]:=SetPrecision[0., 0]*a
Out[52]=0

What is the simple explanation for this behavior?

Brian


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