Calculus is going to be fun. . CAPS sto-. clear fr shift var del Rrt. i It Fl enter. Back in my day we played tetris on our graphing calculators and loved it! You young whipper snapers dont know how good you have it these days! Calculus is going to be fun CAPS sto- clear fr shift var del Rrt i It Fl enter Back in my day we played tetris on our graphing calculators and loved it! You young whipper snapers dont know how good you have it these days!