CATs (College Algebra Tutorials) is a collection of tutorials designed to support College Algebra (at UTM, College Algebra is Math 140). If you have a question you need answered, use the contents list on the left (or above right) to find it. You can also use the search box, or if you are at UTM, start by finding the right section of the book in our course content map. If you do not find what you need, or have any suggestions for improving this system, please contact us.
Our logo is the Cheshire Cat introduced by Charles Dodgson (1832-1898) in the book Alice's Adventures in Wonderland. Charles wrote the Alice in Wonderland books under the pseudonym Lewis Carroll. Charles Dodgson was an excellent mathematician who worked in the fields of algebra, geometry, matrix algebra and mathematical logic.
At one point in the book, Alice sees the Cheshire Cat sitting in a tree, and the cat disappears until only its grin is left. At another point, when the Queen decides to cut off its head, it disappears leaving only the head, causing the executioner a real problem.