Casio FX 9750GIII and Texas Instruments TI-89 Titanium graphing calculators With the thought of higher test scores on math and science classes, we rounded up some of the highest-rated graphing ...

Texas Instruments, headquartered in Dallas, has earned a spot in millions of hearts around the world by earning a spot in millions of bookbags. About 25 million students worldwide use a TI calculator, ...

In the beginning, Texas Instruments found a solid formula to produce a graphing calculator. The TI-81, the first of Texas Instrument's graphing calculators, was released in 1990, and had a 2MHz ...

Yes, the ultimate calculator OF DOOM is up for sale. Still legal for use on the SAT and in most high school and college classes, unlike the TI-92, but having everything you need to breeze through any ...

In my continuing effort to raise money for my paintball gun, I'm selling a Texas Instruments TI-89 graphing calculator. This is a fantastic calculator for advanced high school and college level ...