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Re: More /.{I->-1} craziness. Schools

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  • Subject: [mg107136] Re: More /.{I->-1} craziness. Schools
  • From: Richard Fateman <fateman at>
  • Date: Wed, 3 Feb 2010 06:13:40 -0500 (EST)
  • References: <hjbvc0$2tp$> <hjeqh1$g3c$> <hjh877$r4r$> <> <> <op.u67uiib3tgfoz2@bobbys-imac.local> <hjrf98$n1e$> <hk8neg$895$>

David Bailey wrote:
> Maybe an notebook option to flag numbers of extremely low precision with 
> a colour might be useful. I guess this might be useful more generally in 
> numerical analysis.

This (previously posted) program will do it.

PrintShowFuzz[x_] :=
   x /. (r_Real /; (Precision[r] < $LowPrecisionWarningLimit) ->
Style[InputForm[r], Red])


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