# How to create different fonts

Look at the source of this page to learn how to create these fonts and special effects.

• This is bold font
• This is red font.
• This is italic font
• This is crossed-out text.
 Everything I write here, including code and symbols, is going to be displayed "as is", e.g. %#*&^\<><\span>. • Now I am going to write pre-formatted text in line with media wiki code: &blah\\blih&[itex] • When writing equations, you can either align them like this (inline) 2\pi $or like that (standard)$ 2\pi $. • You can write in color within equations like this:$ x+y+{\color{red}w}+{\color{blue} z} $. • Using color in equations allows you to make check marks and other corrections in other people's equations, such as this:$ \begin{align} X(z) &= \sum_{n=-\infty}^\infty x[n]z^{-n} \text{ (by definition of the z-transform)}, {\color{OliveGreen}\surd}\\ &= \sum_{n=-\infty}^\infty a^n(u[n-2]+u[n])z^{{\color{red}-}n}. \\ \end{align} \$