This is LaTeX code:

[latex]
h:[0, 1]\to A \quad h(t):= 
\begin{cases} f_1(2t) & t \in [0,\frac{1}{2}] \\
f_2(2(t - \frac{1}{2})) & t \in <\frac{1}{2}, 1] \\
\end{cases}
[/latex]