Graph 3D v4.0

By Kerm Martian
Kerm_Martian@yahoo.com
http://www.cemetech.tk

1. Installation

Graph 3D is a full-featured 3D graphing utility for the TI-83, TI-83+, and TI-84+ series graphing calculators. It can simultaneously graph up to 10 3d equations, rotate, and trace, the resultant graphs. It contains powerful tools to modify and edit the resultant graphs, adjust the window, zoom, and rendering options. You can run Graph 3D on any TI-83, TI-83+, TI-83 Silver Edition, TI-84, or TI-84+ Silver Edition on its own, but it is recommended that you also have Doors CS v5.0 or higher on your calculator. To install Graph 3D v4.0 on your calculator, simply send Graph3D.83p (TI-83) or Graph3D.8xp (TI-83+ or TI-84+ series) using your GraphLink-compatible software. Once on the calculator, simply run GRAPH3D once to install it. You will see the welcome screen; press [ENTER] to continue, then [2nd][MODE] to quit.

2. Running Graph 3D

To run Graph 3D from the TI-OS (for most users), simply press [PRGM], select GRAPH3D with the arrows, and press [eNTER] twice. To run it from Doors CS, open Doors CS with prgmADCS, then click on the GRAPH3D icon with the [2nd] or [TRACE] keys. You will come to the equation entry screen, accessible from anywhere within Graph 3D with the [Y=] button. The functions in Graph 3D correspond exactly to the keys in the regular graph tool. [WINDow] lets you edit the windows settings, [ZOOM] lets you zoom the current window, [2nd][ZOOM] edits the graph format, [TRACE] lets you graph and trace the current graphs, and [GRAPH] will render the current 3d equations with your window settings. Press [2nd][MODE] at any time to quit Graph 3D.

3. Features

Graph 3D contains a variety of features to help you use and manipulate your 3D graphs. They include:

• Equation Editor:
  Enter up to 10 equations in the form Y= some equation in terms of X and Z. Press [ENTER] to enter an equation, [CLEAR] to delete an equation, and any standard key command to go to that feature.
    
• Window:
  Edit the window settings. Xmin, Xmax, Ymin, and Ymax control the viewable area of the window; Xpct and Ypct control the polygon count in the X and Y directions for rendering (they must be integers greater than 1). Note that the higher the polygon count, the more memory is required to render the graph.
  
• Zoom:
  Zoom into a variety of settings for the graphs. For ZBox, you must select diagonal corners of the new window, then press [ENTER] to save the setting. After any zoom, the current graph will be displayed.
  
• Format:
  Edit whether the axes are displayed in the graph and the coordinates are displayed during tracing.
  
• Trace:
  Display the current graphs and trace over it in the X and Z directions. Press [+] and [-] to move between graphs.
    
• Graph:
  Display the current graphs. Use the arrows to rotate the graph.
    

4. More Info

For more information, check out www.cemetech.tk. You can discuss this and other Cemetech projects on the Cemetech Forum.