NaN bug: If A = NaN and B = NaN, then A == B right? Not according to LV

I am trying to write code that finds NaN in a 1 d double table, but for some reason, the "equal to" and "not equal to" controls do not work correctly.  I'm using LabVIEW 2009, but this bug may be present in earlier versions.

See the attached screenshot and code.

When this gets fixed?  If not, how can I filter NaN of a 1 d array?  There is a constant "NaN" can I use instead of simply typing "NaN" in a constant of type double?

This isn't a bug. Any comparison involving NaN gives a FAKE for a good reason.

To check for NaN, use this primitive.

Tags: NI Software

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