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Re: simple float/double question
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Re: simple float/double question


  • Subject: Re: simple float/double question
  • From: Greg Titus <email@hidden>
  • Date: Fri, 30 May 2003 15:31:51 -0700

On Friday, May 30, 2003, at 07:54 am, Lloyd Dupont wrote:

how to test if a float/double is a number or not ?
I mean acos(2) for example return NaN, how to know programatically it's NaN ?

With the isnan() (is not-a-number) and isinf() (is infinity) functions.

- Greg
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References: 
 >Re: simple float/double question (From: "Alastair J.Houghton" <email@hidden>)

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