Darren's Weekly Nugget 07/10/2006

[Travis_M.]

It’s also important to note that in the above description (Darren’s at the very top) when you want the code to “do something” when you have X but not Y you’ll need to do that “something” in the FALSE case of a case structure and not the TRUE case of that structure if you wire it directly (this could be a small point of confusion)….

To comment on the IFF operator, the truth table depends on both X and Y, so the function for x <=> y is not equivalent to x.  As far as why it’s not implemented in LabVIEW, I suppose its just not used all that often ;).

As much “fun” as logic class was in college, I wouldn’t exactly say I use it all the time (ask me what Demorgan’s theorem is for example and watch me scratch my head in forgetfulness).

Have a great week everybody,

[tbob]

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@Travis M. wrote:

ask me what Demorgan’s theorem is for example and watch me scratch my head in forgetfulness).

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OK, what is Demorgan's theorem?

[agill]

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@Travis M. wrote:
To comment on the IFF operator, the truth table depends on both X and Y, so the function for x <=> y is not equivalent to x.  As far as why it’s not implemented in LabVIEW, I suppose its just not used all that often ;).

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Yeah, I made that mistake.  Isn't it just an nxor (exclusive-or negated)?  So I guess it is implemented in LV under "not exclusive or".