A1 - computation

computation

the transformation of sequences of symbols by precise rules

\begin{matrix} 3 = 1 \cdot 2^{1} + 1 \cdot 2^{0} \equiv 11 \\ 13 = 1 \cdot 2^{3} + 1 \cdot 2^{2} + 0 \cdot 2^{1} + 1 \cdot 2^{0} \equiv 1101 \end{matrix}

here, $^{'} 0^{'}$ and $^{'} 1^{'}$ are not numbers, but symbols, called bits