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MathGroup Archive 2006

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Re: [RESEND] How to tell Mathematica to use hardware floating point aithmetics

  • To: mathgroup at smc.vnet.net
  • Subject: [mg70025] Re: [mg69991] [RESEND] How to tell Mathematica to use hardware floating point aithmetics
  • From: "Chris Chiasson" <chris at chiasson.name>
  • Date: Sat, 30 Sep 2006 05:13:11 -0400 (EDT)
  • References: <200609291048.GAA22392@smc.vnet.net>

A guess:
$MinPrecision=MachinePrecision
$MaxPrecision=MachinePrecision
$MaxExtraPrecision=0

On 9/29/06, Nasser Abbasi <nma at 12000.org> wrote:
> Hello.
>
> Suppose I want to just use hardware floating point operations.
>
> Suppose my hardware uses IEEE754 standard for binary floating point
> arithmetics, and I want all my numerical computation inside mathematica to
> adhere to this only and not to any other in-between software based floating
> point arithmetics (such as significant arithmetics).
>
> Is it enough to wrap each result with N[x,16] ? Or is there a flag/option
> somewhere that one can set once?
>
> thanks,
> Nasser
>
>


-- 
http://chris.chiasson.name/


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