# Squaring a vector?

1. Mar 21, 2006

### MrLobster

How do you sqaure a vector?

Is it the magnitude of the vector times the vector?

2. Mar 21, 2006

### chroot

Staff Emeritus
You can't "square" a vector, because there's no distinct "multiply" operation defined for vectors.

The dot product is a generalization of multiplication to vectors, and you can certain take the dot product of a vector with itself. The resulting quantity is the squared norm of the vector.

- Warren

3. Apr 16, 2011

### UniPhysics90

would this mean just the square of each term added together?

ive tried this but then end upwith an answer different to the one given, i have a factor of sin(\$) missing.

4. Apr 16, 2011

### cristo

Staff Emeritus
Maybe if you state the question, and your attempts at the question, then it may be possible to answer you.