- My "talk" page is User talk:Ksn.
- <math> help at Help:Formula.
- Wikipedia:Picture tutorial
My <math> problem mysteriously went away. Perhaps the rendering of the formula into the .png file takes some time. FWIW, here's what didn't work and now does work:
Testing other <math> stuff...
single-hyphen double--hyphen triple---hyphen quad----hyphen n–dash m—dash
Let's try a template: This is Ksn's test template.