An electronic calculator is a tiny portable device that performs the fundamental calculations of mathematics. These calculators are reasonably priced however; the price varies according to the model as well as the amount of functions it supports. Electronic calculators include a keyboard with keys for digits and mathematical calculations. The key mechanisms of an electronic calculator are the power resource, keypad to key in numbers and commands, scanning unit which picks up signal when the [...] 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 »
TI-Nspire Series
Texas Instruments' latest series of graphing calculators is called the TI-Nspire. There are four distinct models, with a few subsets beyond that, and you should be aware of the operations and capabilities of these new calculators. Two of those models, the CX and the CX CAS are the most innovative graphing calculators to date. There are four primary models of the TI-Nspire. There is the original TI-Nspire, which was designed as a replacement for the [...] Read more »
TI-89
Until the more recent release of Texas Instruments' TI-Nspire, the TI-89 represented the pinnacle of graphing calculator technology. Its hardware reflected this coveted position, and its calculation capacities were previously unmatched - but like the TI-83 and the TI-84+ before it, it was eventually replaced with an upgrade. The TI-89 came with 256KB of RAM, which was significant for a calculator when it was released in 1998. It also had Flash ROM, like the TI-83+ [...] Read more »