$V_{i}$ is for the $i^{th}$ component of a vector $V$, and \r
$\llbracket0;N\rrbracket$ is the integer interval $\{0,1,\hdots,N\}$.
$V_{i}$ is for the $i^{th}$ component of a vector $V$, and \r
$\llbracket0;N\rrbracket$ is the integer interval $\{0,1,\hdots,N\}$.