This is a test of the new Mathjax plugin. Also, a quick little cheat sheet for right-angle trig identities; useful for calculating component forces of an angular force.

$$ o = h \, \sin \, \theta = a \, \tan \, \theta $$

$$ a = h \, \cos \, \theta = \frac {o}{\tan \, \theta} $$

$$ h = \frac {o}{\sin \, \theta} = \frac {a} {\cos \, \theta} $$