# Help:Questions

How Do I...
Please post site related problems on the main talk page.
i.e. Things not working as they should.

Just a note.

The delimiter $|$ doesn't seem to be valid in the eqn template, so I used \vert instead, but this behaves pretty weirdly, e.g.

 $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\le$$ $$\displaystyle$$ $$\displaystyle \left\vert { a_{m+1} } \right\vert + \left\vert { a_{m+2} } \right\vert + \cdots + \left\vert { a_n } \right\vert$$ $$\displaystyle$$ $$\displaystyle$$ Triangle Inequality

is fine, but

 $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\le$$ $$\displaystyle$$ $$\displaystyle \left\vert {a_{m+1} } \right\vert + \left\vert {a_{m+2} } \right\vert + \cdots + \left\vert {a_n} \right\vert$$ $$\displaystyle$$ $$\displaystyle$$ Triangle Inequality

is not.

Argh, also this:

 $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle \left\vert { \frac{a_n}{ n^s } } \right\vert$$ $$=$$ $$\displaystyle$$ $$\displaystyle \frac{ \left\vert { a_n } \right\vert }{ n^\sigma }$$ $$\displaystyle$$ $$\displaystyle$$ {{eqn|l= o=\leq r= \frac{ \left\vert { a_n } \right\vert }{ n^{\sigma_0} } {{eqn|l= o= = r= \left\vert { \frac{a_n}{ n^{s_0} } } \right\vert

can't make it work at all. Linus44

Placing two }'s side-by-side will prematurely close {{eqn}} template. This has been a topic of discussion on the main page ... we're still looking for a fix. --Joe (talk) 15:23, 15 February 2011 (CST)
Ok, thanks Linus44 15:30, 15 February 2011 (CST)
You missed some closing braces
 $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle \left\vert { \frac{a_n}{ n^s } } \right\vert$$ $$=$$ $$\displaystyle$$ $$\displaystyle \frac{ \left\vert { a_n } \right\vert }{ n^\sigma }$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\leq$$ $$\displaystyle$$ $$\displaystyle \frac{ \left\vert { a_n } \right\vert }{ n^{\sigma_0} }$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$\displaystyle$$ $$=$$ $$\displaystyle$$ $$\displaystyle \left\vert { \frac{a_n}{ n^{s_0} } } \right\vert$$ $$\displaystyle$$ $$\displaystyle$$

{{begin-eqn}}
{{eqn|l= \left\vert { \frac{a_n}{ n^s } } \right\vert
|o= =
|r= \frac{ \left\vert { a_n } \right\vert }{ n^\sigma }
}}
{{eqn|l=
|o=\leq
|r= \frac{ \left\vert { a_n } \right\vert }{ n^{\sigma_0} }
}} <------------------------------------------------------------------ here
{{eqn|l=
|o= =
|r= \left\vert { \frac{a_n}{ n^{s_0} } } \right\vert
}} <------------------------------------------------------------------ and here
{{end-eqn}}


--Joe (talk) 15:32, 15 February 2011 (CST)

I tried 4 times to add the same reply but I kept getting a midair collision. Stroll on. --prime mover 15:35, 15 February 2011 (CST)

## How do you post something on a discussion page?

How do you post something on a discussion page? --1is0? May 4, 2013

By pressing the link at the top of the page that says "Discussion". If it's blue, it means there's already such a page, to which you are welcome to add material. If it's red, then the page does not yet exist because nobody has posted anything to it yet. Your contribution will then be the first on that page. --prime mover (talk) 22:58, 4 May 2013 (UTC)