This page uses two different methods to define macros: either putting them in JavaScript notation in the MathJax configuration, or in TeX notation in the body of the document.

Some math that used the definitions: $f\colon\RR\to\RR^3 \hbox{ by } f(t)=\< t+1,{1\over 1+t^2}, \sqrt{t^2+1} >$ and $\{\,z\in\CC \mid z^2 = \bold{\alpha}\,\}$