The calculator’s “C” button—the one that clears input—was gone. The “C” itself had been cleared. The “C” button’s function is vestigial. Back when calculators were commercialized, starting in the ...

The team made extensive use of the ArTICL library which allows graphing calculators to interface with microcontrollers like the MSP432 that they used, and drove the whole thing with a classic TI-84.

TI calculators don’t include a Game Boy cartridge slot, so [Christopher] used an Arduino Uno to interface the two. He built upon the Arduino-TI Calculator Linking (ArTICL) Library to create ArTICam.

Open Settings. On the Settings interface select Personalization. Now click the drop-down arrow of Colors on the right. Choose the Dark Mode option. Launch the Calculator app and you will notice ...

As for how this technical marvel is even possible, it turns out that the key is an open-source application called Calc2KeyCE, which allows the graphing calculator to interface with a PC over a ...