# Deborah R. Fowler

## Dot Product Follow

Posted March 12 2016

**"Dot Product is the product of the magnitudes of the two vectors and the cosine of the angle between them. The name "dot product" is derived from the centered dot " " that is often used to designate this operation." See wiki entry. See the hip file for a demonstration.**

Here is an excellent example using the

**dot product**,

**pythagorean theorem**and a little bit of

**vector math**tossed in to solve an animation problem. Please see the hip file to correspond to this.

There are two similar problems in this section, two point constraint and train wheels.