Two (or more!) piecewise functions on same line

Question

Want to display two piecewise functions on the same line. Currently using 'cases' to define two piecewise functions on two separate lines. It looks ugly. They can fit on the same line, but how?

Answer 1

You can cascade two cases on the same line as follows:

Code:

\documentclass{article}
\usepackage{amsmath}

\begin{document}
\begin{equation*}
f(x) = \begin{cases}
             0  & \text{if } x < 0 \\
             1  & \text{if } x \ge 0
       \end{cases} \quad
g(x) = \begin{cases}
             f(x)+1  & \text{if } x < 0 \\
             f(x)-1  & \text{if } x \ge 0
       \end{cases}
\end{equation*}
\end{document}