# The tag even-and-odd-extensions

So there's this tag .

There are 16 questions with this tag which consist of:

1. Even and odd functions
2. Even and odd integers
3. Even and odd digits of a number
4. Extending a function to an even or odd function over $\mathbb{R}$
5. Something to do with the wave function

From a brief Google search, it appears that this has something to do with Fourier analysis and differential equations, definitely not my expertise.

My request:

1. Could we, first of all, decide whether we even need this tag?
2. And if we decide we need it, could someone with more expertise than I have please edit the tag wiki and change the tags on these 16 questions appropriately?

• It seems that the tag was created about a year ago. Perhaps it would be reasonable to notify also the tag creator that there is a discusison about this tag. – Martin Sleziak Jan 18 '18 at 14:09
• @MartinSleziak By the way, out of curiosity, how do you find the creator of a tag? The tag info page tells me nothing about the creator. – Clarinetist Jan 18 '18 at 14:10
• I searched in the tagging chatroom. This SEDE query seems to confirm that this was most likely the first post in the tag. (Admittedly, neither of those is 100% reliable.) See also: Can you tell who created a tag. – Martin Sleziak Jan 18 '18 at 14:12
• @MartinSleziak I've pinged the creator. Thanks. – Clarinetist Jan 18 '18 at 14:32