DIY Graphing Calculator is Touchscreen Nerd Excalibur
Who needs Texas Instruments? Not Matt Stack, creator of the Open SciCal. His homemade, 100% open source graphing calculator not only blows away the functionality of store-bought devices, but is the “ultimate status symbol among the nerdiest of the nerds.” When I was in high school, stolen TI-83s were a pervasive trade, the scourge of…
