# Notation for a unit vector

If I have a vector $\vec{v}$, is there a standard concise notation for the unit vector in the same direction of $\vec{v}$ that is $\frac{\vec{v}}{|\vec{v}|}$?

• I don't think so... May 21 '15 at 15:15
• You can simply define one. But, to me, there seems no need to have one such. May 21 '15 at 15:18

Sometimes the notation $$\hat v = \frac{v}{\|v\|_2}$$ is used. I've especially seen it on wikipedia and 3D-Graphics related articles containing math.
• Ok so it means the same thing as$\frac{\vec{v}}{|\vec{v}|}$? May 21 '15 at 16:11