Add a NaN constant to the numeric palette

[altenbach]

It is not obvious that a NaN numeric constant can be created by simply typing "NaN" as value. What we see are weird constructs, e.g. "zero divided by zero" or "square root of -1" to generate a NaN on the diagram.

I suggest to add a NaN diagram constant to the numeric palette to make it more obvious.

(This is just a quick draft. Of course it should be matched in color and design to the other constants)

[Brian_Powell]

<parody>

I propose that we add a "1" constant.

Unity is waaay more important than the nothingness that is zero, or all those so-called "prime" numbers.  And don't get me started about how much more important 1 is than, say, NaN.  Without 1, all of mathematics falls apart.

If we had a one constant, I could add it to other values when I wanted to increment them.  I could multiply it by other numbers when I wanted them to stay the same.

It's such a pain to drop a "0" constant and change it to "1".

</parody>

As you can tell, I'm still not convinced.  But by all means, keep giving this kudos if you believe in it.  Power to the people who vote on the Idea Exchange!

[kam226]

There are some good uses for NaN, like the three above (and the fourth "illegal operation" use which is really important).   The only reason against using it, AFAIK, is the oddity of calling it a "constant" and putting it in with the constants.   How can it be a constant when it's "not a number"?

[altenbach]

> How can it be a constant

because you cannot change it. 😄

[Manzolli]

Agree with Brian_Powell. "1" and "-1" are used a lot. Thinking about usability, I would like to have both in the palette. The "-inf", "+inf", "NaN", etc. in the help are good enough. Just type when you need it.

[Darren]

Available in LabVIEW 2019 and later.