Calculus by JP & Mahen Shrestha - Trick

Turn the calculator on your cell phone into the focus of a surprising piece of digital magic. Two spectators choose numbers freely, and their total matches a prediction sealed in an envelope.

For another routine, audience members enter random numbers while your back is turned, and you reveal the final result one digit at a time. It’s a practical option for walk-around performances when you don’t want to carry a separate calculator.

• Runs on your device: Use the calculator on a cell phone, PDA, or computer with Flash installed.
• Free choices: Spectators choose the numbers, with no stooges or sleights.
• Repeatable: You can perform the effect again immediately, with different results each time.
• Examinable calculator: The mobile calculator can be examined before and after the effect, and it can also be used as a regular calculator.
• Included materials: Comes with the necessary software and detailed instructions on CD-ROM.

Keep Calculus ready on a device you already carry, and you can bring a sealed-prediction moment to your next walk-around set.