1. Visualization
2. Formulae
2.1. In
\[ f(t) = t^3\]
2.2. Out
\[ f(t) = t^3 - 3t^2 +3t\]
2.3. In-Out
\[ f(t) =
\left\{
\begin{array}{lr}
4 t^3 & t \leq 0.5 \\
4 t^3 - 12 t^2 + 12 t - 3& t > 0.5 \\
\end{array}
\right.\]