From mathbits.com - TI 83+, 84+ CALCULATOR INSTRUCTIONS
Beginning Algebra Topics
Absolute Value
Checks-Numerical
Checks-by Equations
Equations of Lines
Equation Solving
Evaluate Expressions
Factoring
Inequality
(single variable)
Inequality Graphing
Inequality Tidbits
Linear-Quadratic Pair
Parabolas
Quadratic Equations
Systems of Equations
Trigonometric Ratios