Chapter P in the text is a review
chapter. Explore previously covered topics with LiveMath
below.
Highlight any value or expression with a square box to the left and
watch LiveMath Update. The triangles represent
conclusions.
For details and practice with the LiveMath Plug-in click on the next link.
http://www.livemath.com/plugin/
Note: To restart
LiveMath after exploring, just reload your
webpage.