I love this software because it allows me to do all my math problems in one place, instead of having to carry around three different books or paper notebooks with me at any given time. The program also comes with many useful tools that allow you to create your own custom functions. Some people may find the interface not very intuitive but once they get used to it, it's easy enough to use. It can be quite expensive if you don't have access to an academic computer (or even just a regular desktop) as some of the features require large amounts of RAM. This does not mean students should avoid using sage--it offers so much functionality without being too difficult to learn! In addition to solving basic equations such as x^2 + y^2 = z^2, we are able to solve more complex systems using our graphing calculator by creating new variables and then plotting them versus each other to see their relationship when combined together.