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Graphing Calculator Math

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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…)

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Calculator graph

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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…)

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HP graphing calculator

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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…)

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TI 84 graphing calculator

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Texas Instruments TI-84 Plus Silver Edition Graphing Calculator (Pink)

I absolutely love this calculator. I used to have the Ti83 silver but then I decided to upgrade. This calculator has more space and well, it’s pink. Not really a math person, everytime I walk into the math class room and take it out, it just brightens my mood. This calculator is easy to use, and very practical. You can use it for your highschool and college classes, and also for standardized test like the SATS. More memory is helpful because you can store more custom made applications. The silver edition lets you change faceplates as well so if you ever get tired of the pink, just pop it off and switch the plate. I love this calculator, and i guarentee you will be happy with your product. (more…)

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TI Graphing Calculator

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Texas Instruments TI-84 Plus Graphing Calculator

The new TI-84 Plus is a wonderful calculator. If anybody has had the TI-83 or 83 Plus, they know how easy and reliable it is. The 84 Plus is an all-around imprivement on the older version and even worth the additional $15-$20. I have had it since school started and have noticed than any problem I enter, it is solved immediately upon pressing enter, or solve. The speed is a great improvement over the 83-Plus. The computer features are nice, but rarely used by myself. For anybody who is supposed to buy a TI series calculator for school, the 84 Plus us definitely the one to pick up this year and for the next few years I assume. Easy, fast, reliable, durable, and even sleek. As long as you handle it properly and use it enough, you will get all of your $110 out of the TI-84 Plus. (more…)

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