Graphing calculators can leave people with a bit of sticker-shock, they're more expensive than many people are used to paying for a calculator. An essential item on most high school supply lists, the benefits of a high quality graphing calculator are well worth the price. This is a school supply that you won't outgrow because it will grow with you. When I say that a graphing calculator will grow with you, I'm referring to it's [...] Read more »
What the Plus Symbol Means
If you've ever shopped for a graphing calculator, you've probably seen Texas Instruments' line of them - starting with the TI-83 and going on up to the TI-89 (before the more recent release of the TI-Nspire). But in the middle of that range are a few calculators with a big plus symbol (+) after the number. And you've probably wondered - what does that plus symbol mean? What's the difference between a TI-83 and a [...] Read more »