There are many ways to use the TI-89 in algebra, trigonometry, and calculus. A number of these are covered in this tutorial. Many of the topics are applicable to more than one of the courses. Many of these examples depend on your being able to properly enter a function.

- Logs - change of base
- Analyzing the asymptotic behavior of a function
- Finding a zero (root of a function)
- Finding a minimum or maximum value of a function
- Finding where two graphs of functions intersect
- Graphing a piecewise graph, and the greatest integer function
- Graphing a circle
- Graphing an inverse
- Graphing a tangent line to a curve
- Solving equations
- Solving a system of equations
- Find the least common multiple or greatest common divisor
- Factor an expression
- Expand an expression
- Find a common denominator
- Convert from one unit to another

- Finding a zero (root) of a function
- Finding a minimum or maximum value of a function
- Finding where two graphs of functions intersect
- Graphing inverse trig functions
- Graphing polar curves
- Converting to DMS notation
- Converting coordinates from polar to rectangular or rectangular to polar
- Calculating trigonometric and inverse trigonometric functions

- Analyzing the asymptotic behavior of a function
- Finding a zero of a function
- Finding a minimum or maximum value of a function
- Finding where two graphs of functions intersect
- Evaluating a derivative or integral on a graph
- Finding the derivative or integral of a function on the home screen
- Tracing the path of a parametric function
- Graphing a derivative
- Graphing an integral
- Graphing a tangent line to a curve
- Finding the terms in a sequence
- Finding arc length
- Find a limit
- Find a Taylor polynomial
- Differential equations
- Convert from one unit to another