I’ve had this calculator since my junior year of high school. It was the third calculator my parents bought me, as its predecessors kept getting broken because books would fall on them in my locker. (Notice the clever use of passive voice there–I certainly had nothing to do with those books falling.) My mother told me it was the last calculator she would buy me. And it was. I used it from then until tonight when I accidentally dropped it. The solar panel broke and the calculator, she is no more. Farewell, friend. You served me through many a math problem.