Re: Interesting behavior of double.NaN

> Hello,
>
> This interesting behavior is by design. From the documentation:
>
> ----------------------------
> Double.NaN Field
>
> Represents a value that is not a number (NaN). This field is constant.
>
> Use IsNaN<http://msdn.microsoft.com/en-us/library/system.double.isnan.aspx> to determine whether a value is not a number. It is not possible to determine whether a value is not a number by comparing it to another value equal to NaN.


Hi,

As you say, this is by design. Aside from this, however, you need to
be careful testing floating point numbers for equality.
http://docs.sun.com/source/806-3568/ncg_goldberg.html (reprint)

John

===================================
View archives and manage your subscription(s) at http://peach.ease.lsoft.com/archives