Bold vector in LaTeX - How to make a vector bold in LaTeX

Symbol Command
$\bm{v}$ \bm{v}
$\bm{AB}$ \bm{AB}
$\bf{v}$ \bf{v}
$\bf{AB}$ \bf{AB}
$\bold{v}$ \bold{v}
$\bold{AB}$ \bold{AB}
$\boldsymbol{v}$ \boldsymbol{v}
$\boldsymbol{AB}$ \boldsymbol{AB}

LaTeX vector

LaTeX