A. Polynomial Functions
    B. Trigonometric Functions
    C. Rational Functions
    D. Exponential Functions
    E. Radical Functions
    F. Logarithmic Functions   

     A. Overview
        1. Window
        2. Zoom
        3. Trace
        4. Table

    B. Examples
        1. Polynomial Functions
        2. Trigonometric Functions
        3. Rational Functions
        4. Exponential Functions
        5. Radical Functions
        6. Logarithmic Functions

    C. Styles
    

    A. F1-Tools
    B. F2 - Zoom
    C. F3 - Trace
    D. F4 - Regraph
    E. F5 - Math
    F. F6 - Draw
    G. F7 - Pen

    A. Derivative
    B. Greatest Integer
    C. Integral
    D. Inverse Trig Functions
    E. Piecewise Functions 

    A. Parametric
    B. Polar