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Preserve natural number "e" using N or SetPrecision

  • To: mathgroup at smc.vnet.net
  • Subject: [mg30781] Preserve natural number "e" using N or SetPrecision
  • From: guillerm at aida.usal.es (Guillermo Sanchez)
  • Date: Wed, 19 Sep 2001 00:16:21 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

When it is used N or SetPrecision in expresions involving the natural
number "e" Mathematica gives the output showing "e" as a numeric value
i.e: 

int[]:=N[0.19884 Exp[-2.0000000037 t], 5]

out[]:=0.19884 2.71828^(-2. t)

or

int[]:=SetPrecision[0.19884 Exp[-2.0000000037 t],3]

out[]:=0.199 2.72^(-2. t)

But I wish see in the output the simbolic notation of "e" better than
the numeric value. Any help?


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