# Vector Projection in $R^3$ (3李⑥썝?곸쓽 ?뺤궗??

Vector Projection
The vector projection of a vector $\textbf{u}$ on a vector $\textbf{v}$ is given by :
$\textrm{Proj}_\textbf{v} \textbf{u}= \large{ \frac{\textbf{u} \cdot \textbf{v} }{\textbf{v} \cdot \textbf{v}} } \normalsize{\textbf{v}}$ where the operator $\cdot$ denotes a dot product.