Graphing Calculator, Scientific Financial and Graphing Calculators
Calculator provides advanced graphing for calculus, AP courses and university studies. Permitted for use on many state and standardized tests. Includes official AP calculus review questions on the enclosed product CD. Computer algebra system. 3-D graphing and real time rotation, contour and implicit plots. Complete with USB cable for instant computer connectivity. New style and more than double the memory than the previous TI-89. Includes EE*Pro App for electrical engineering. (more…)
Texas Instruments TI-84 Plus Silver Edition Graphing Calculator (Pink)
Building on the hugely popular TI-83 Plus, which is perhaps the best-selling calculator of all time, the TI-84 Plus pink edition is completely compatible with the TI-83 family. From that well-established platform, this new model adds more speed (a processor that’s 2.5 times faster), an enhanced high-contrast display (eight lines by 16 characters), changeable faceplates (pink included), and a suite of 30 applications. And with nine times more memory than the TI-83 Plus (1.54 MB of RAM, 480 KB Flash ROM), there’s plenty of room for even more applications and your own data storage. (more…)
Texas Instruments TI-NSpire Math and Science Handheld Graphing Calculator
The TI-Nspire handheld comes with a snap-in TI-84 Plus Keypad that provides the same keystrokes as TI-83 Plus, TI-84 Plus and TI-84 Plus Silver Edition graphing calculators. Whether handhelds are provided by your school or your students bring in personally-owned units, this side-by-side compatibility between TI-Nspire handhelds and existing TI graphing calculators delivers a comfortable transition to TI-Nspire technology. Inclueds USB cable for software and file downloads. (more…)
HP 50g Graphing Calculator (F2229AA#ABA)
The 50g features easy-to-use, powerful tools that students and professionals can rely on for years of performance, including built-in graphing functions, constants, and applications. This calculator also offers built-in lessons and step-by-step problem solving examples to help illustrate abstract concepts. Choose between efficient RPN (Reverse Polish Notation), Textbook, or Algebraic data entry and rest assured that expansive memory (with SD card slot) means the 50g can handle even the most complex calculations. Graphing features include 2-D function, polar, and parametric plot, as well as 3-D, differential equation, and bar plot.
The 50g’s large, high-contrast display with adjustable font type and size clearly shows every important part of a formula, calculation, or graph so you’ll be able to clearly read and analyze your results. In addition, you can isolate and evaluate sub-expressions using the intelligent editor, while also cutting, pasting and copying objects as needed. Finally, the large equation library and over 2,300 built-in functions make this calculator ideal for both professionals and students. (more…)
Texas Instruments TI-NSpire Math and Science Handheld Graphing Calculator
Strengths:
The document management system — multiple “problems” can be kept in the calculator at the same time, and each problem keeps its own variable names; good graphing capabilities; ability to split the screen and work with multiple views of the same problem; spreadsheet application. The calculator has 5 “applications” (calculator, graphs & geometry, spreadsheet, data & statistics, notes), and information can be shared between them.
Weaknesses:
The documentation is very poor. There are two user guides, with considerable overlap in the contents. In User Guide Part 1, which comes packaged with the calculator, there are 25 pages on the Graphs & Geometry application, and the information on how to actually plot a graph is barely mentioned. User Guide Part 2 comes as a PDF file, and has more detail, but is badly organized and missing a lot of information. For example, instructions for a number of operations say to “drag” something, but nowhere in the manual does it say how to do that. (more…)
Casio FX-115ES Advanced Scientific Calculator with 2-Line Natural Textbook Display
I had an upcoming exam that specifically prohibited programmable calculators, so while I have quite the “stable” HP RPN machines, all of them were out. The FX-115ES was what I found as a substitute, and I’m quite impressed, especially for the price (which is $18 at Target, BTW). The machine works well and is quite feature-laden and easy to use — I believe it is the most powerful non-programmable, non-graphing machine out there, and at a price where you can afford a few spares to spread around your home, office, car, etc. so that you don’t have to worry about losing one.
I’ve had tons of calculators over time, with the Casio FX-4000P (back in the late ’80s) being the first truly memorable one (my brother had an FX-7000G, the first graphing calculator). I switched to HPs in college, and I am still an RPN die-hard (I’m eagerly awaiting the release of the 30th anniversary HP-35s this summer!), but I can still appreciate a quality product such as this from Casio. (more…)
Casio(R) FX-9750GPlus Graphing Calculator
The Casio fx-9750G PLUS is a great calculator for some things, terrible for others. Doing polynomial equations is simple, expecially when compared to a Texas Instruments’ version. On the other hand, I have yet to figure out how to do a standard deviation. Keep in mind that if you’re in high school, your course is almost definitely using a Texas – I can’t tell you how many nights I’ve spent poring over the manual figuring out how to do the simplest of operations, while those with Texas Instruments know how to do it in a matter of minutes. If you’re using it outside a formal math course in a situation that doesn’t require too many complicated operations, it’s a great calculator – I highly recommend. But if you’re Pre-Calc or up, do yourself a favor and go grab a Texas. (more…)
HP 50g Graphing Calculator (F2229AA#ABA)
I just received mine in the mail today. I do not think that it is officially even released in the US; at least, it is not on HP’s English language website yet.
This is the first HP calculator I have ever owned and my impressions so far have generally been very positive. It seems just like the 49g+, but with a fully plastic case and keyboard, a serial port, and a four cell battery compartment.
Compared to the TI-89, the HP-50 seems more powerful. The CAS seems a little stronger, it has a lot more built-in mathematical, scientific, and engineering applications, and the hardware is far superior. The calculator runs on a ARM processor similar to the speeds on low-end pocket PCs, unlike the TI-89′s slow custom processor, but the CAS runs on an emulated processor, so it is not as fast as it could be. The HP also has an infrared port and a SD expansion card, so it has no realistic memory limits.
Its liabilities are that the screen seems a little smaller than the TI-89′s, the calculator is not nearly as user-friendly as the TI-89′s, the calculator only comes with a basic manual of about 100-200 pages while the full 900 page manual is only available on CD, and there does not seem to be as much third party support as for the TI-89.
But if you want the most powerful portable mathematical system available in a handheld calculator, this is definitely a must-buy. (more…)
Texas Instruments TI-89 Titanium Graphing Calculator
Before I bought a TI-89 Titanium, I had used a TI-83 Plus for four years. After taking calculus and learning about limits, derivatives, integrals, infinite series, Taylor series, differential equations, and multivariable functions, I decided that I would look for a calculator which was capable of symbolic computation. After analyzing my options, I decided on a TI-89 Titanium. The TI-89 Titanium is able to expand polynomials, factor polynomials, and do all of the calculus techniques that I mentioned — symbolically and numerically. One of the other things I found helpful was the TI-89 Titanium’s ability to plot direction fields using different algorithms (including Euler’s method). One of the nicer things about this model (compared to the TI-89) is that it has USB connectivity (cord included) for installing applications and transferring data. Another nice thing is that it also supports connectivity to older model TI-89s via the old I/O port which is right next to the USB connector. I also found the “exact mode” very useful (exact mode will give you exact answers rather than decimal approximations). Yet, the most useful feature of this calculator is probably the “pretty print” feature which displays expressions as you would normally write them on paper. This feature allows you to easily see the expression that you typed in. All these features plus copy and paste ability make this calculator nearly perfect. My only complaint is that the cover does not initially slide on and off easily. However, I’m sure that with more use it will wear in. Overall this is a great calculator — I recommend it (more…)
Texas Instruments TI-84 Plus Graphing Calculator
Building on the hugely popular TI-83 Plus, which is perhaps the best-selling calculator of all time, the TI-84 Plus is completely compatible with its predecessor. From that well-established platform, this new model adds more speed (a processor that’s 2.5 times faster), more memory (24 KB RAM and 480 KB of Flash ROM), an enhanced high-contrast display (eight lines by 16 characters), and more beloved Apps. (more…)
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