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Re: Machine-precision Exp[] function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg93612] Re: Machine-precision Exp[] function
  • From: mark mcclure <mcmcclur at unca.edu>
  • Date: Tue, 18 Nov 2008 07:20:05 -0500 (EST)
  • References: <gfma98$g54$1@smc.vnet.net> <gfp247$4bq$1@smc.vnet.net>

On Nov 16, 7:02 am, Roman <rschm... at gmail.com> wrote:
> answering my own question:
> MachinePrecisionExp = Compile[{{x, _Complex}}, Exp[x]]
> Any thoughts on this?

Try MachinePrecisionExp[10^6`]
The result is 3.033215397*10^434294, together with an error warning
that the computation will proceed with uncompiled evaluation.

The design philosophy is to achieve seamless computation, so I think
you'll really need to do your own error checking.

Mark McClure


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