# Dot Product Insight

- Author:
- tobibrooks, Tim Brzezinski

Recall the

**dot product of 2 vectors**is defined to be the value**(a)(c) + (b)(d)**. Note that the**dot product of 2 vectors is a scalar quantity.**In the applet below two vectors (**u**and**v**) are drawn with the same initial point. Their dot product is also shown. Interact with this applet for a few minutes. Do you notice anything (or several things) that seem interesting about the relationship between the dot product and angle between the vectors? If so, discuss with your group.