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More /.{I->-1} craziness

• To: mathgroup at smc.vnet.net
• Subject: [mg106017] More /.{I->-1} craziness
• From: AES <siegman at stanford.edu>
• Date: Wed, 30 Dec 2009 04:15:25 -0500 (EST)
• Organization: Stanford University

The more I play with these I->-I substitution rules, the more seemingly 
wildly inconsistent results emerge.  For example:  

   In[1]:= -I/.I->-I

   Out[1]= -I

   In[3]:= -E/.E->-E

   Out[3]= << The Esc e e Esc symbol >>

   In[4]:= -Pi/.Pi->-Pi

   Out[4]= \[Pi]

   In[5]:= -Infinity/.Infinity->-Infinity

   Out[5]= -\[Infinity]

(In/Out[2] is removed because it was an irrelevant cell.)

• Follow-Ups:
  • Re: More /.{I->-1} craziness
    • From: Leonid Shifrin <lshifr@gmail.com>
  • Re: More /.{I->-1} craziness
    • From: Murray Eisenberg <murray@math.umass.edu>
  • Re: More /.{I->-1} craziness
    • From: Patrick Scheibe <pscheibe@trm.uni-leipzig.de>