You were my best friend. You were always there for me when I had a problem…When I was just tired and needed someone…When I’m exhausted and lazy, you kept me company through the hours of homework after school. I’d see you everyday and I’d smile when I held you, just knowing that you would help me through it all. And now? You’re gone. You’ve left me and I’m lost. We were like two peas in a pod. We understood each other’s needs and you always provided me with the solution to all of my problems. Let it be addition and subtraction or square roots and trigonometric functions, I could always count on you, Texas Instruments Ti-30XIIS. You will forever be my favorite calculator in the whole entire world. Ever since the first day I laid eyes on you in seventh grade, you caught my eye from a distance as I was strolling through Wal-Mart. I CHOSE you. And you'd chosen me. RIP Ti-30XIIS (2007-2011)

I'm buying my second one, my first one lasted over eight years. Bought my first one before I started college and now I'm an engineer and use it a couple of times a week. It does all basic math functions, trig in degrees/radians, plus 1 and 2 variable statistical calculations. Most professors allow it's use on tests (unlike many graphing calcs). Scientific, engineerng and floating notation. Has more than one memory slot (five). Has 2-line 10 digit display and gives you backspace, insert and other nice functions so you don't have to "start over" when entering long problems. Solar with battery back-up when there isn't enough light. Overall exceptional calculator for about 15 dollars. What more can you ask for?