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How do I Graph Calculator Emulator?
Graphing calculators are essential for anyone taking any type of science course. These devices can be very costly and are easily lost or broken. A graphing calculator emulator is a free program which allows you to run a virtual version of your calculator. All of the functions of the calculator remain intact and available to test. The SDK, or software development kit, which contains the emulator allows for the development and testing of programs that can be run on the graphing calculator.
Instructions

Texas Instruments Emulator

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Visit the Texas Instruments link.


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Click "Download" on the "TI83 Plus / TI84 Plus / TI73 Explorer SDK" page.

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Click again on the "TI83 Plus SDK" link, and save the EXE file.

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Run the saved EXE file and follow the installation prompts. Restart your computer and run the "TI83 Plus Flash Debugger" program.

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Select "File" in the top left corner of the program and hit "New." Select the calculator model of your choice, and press "Ok". Another menu will pop up, select "Debug" and press "Go." The emulator will start up on its own.
Open Source Emulators

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Download the file named "vti.zip" file at the ticalc.org website (see Resources). To use this software, you will need a graphing calculator that is capable of connecting to your computer.

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Extract the ZIP file and run "vti.exe." Select the model of calculator you have, and the type of cable connecting your calculator to the computer.

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Wait as the software downloads the "ROM code" from your calculator. Once the transfer is complete, you can now access the emulator software.
Emulator Alternatives

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Visit a site such as Wolfram Alpha. Wolfram Alpha is a problem solving website that is capable of working out complex mathematical equations that gives you step by step feedback.

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Purchase a program such as Wolfram Mathematica or Maple that is capable of complex systems and provide 3D rendering of mathematical graphs.

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Download a free, open source program from Maemo called "AlmostTI  TI Graphing Calculators Emulator." This program is specifically designed for tablet computers such as the iPad or the Motorola Xoom.

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References
Resources
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