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Re: gives 919.8359999999999?`

  • To: mathgroup at smc.vnet.net
  • Subject: [mg132103] Re: gives 919.8359999999999?`
  • From: Bob Hanlon <hanlonr357 at gmail.com>
  • Date: Fri, 6 Dec 2013 02:15:45 -0500 (EST)
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  • References: <20131205080510.023806A20@smc.vnet.net>

This is expected when operating with machine precision and the decimal
numbers do not have exact binary representations.

916.536+3.3//FullForm

919.8359999999999`

916.536+3.3//Rationalize//N//FullForm

919.836`

916.536+3.3//Rationalize[#,0]&//N//FullForm

919.836`


Bob Hanlon



On Thu, Dec 5, 2013 at 3:05 AM, Guillermo Sanchez <
guillermo.sanchez at hotmail.com> wrote:

> FullForm[916.536 + 3.3] gives 919.8359999999999 instead of 919.836?
>
> Guillermo
>
>




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