Review of HP F2229AA#ABA 12c Financial Calculator

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(More customer reviews)I happen to buy this product directly from HP. I had it for two weeks and the interal display broke. Called HP tech to find out about getting it repaired, and was told that it was my fault that it broke, and that it was not something that could be repaired, bottom line I was told I had to buy another at 160.00. I have had a complain into Hpheadquarters for about a week now and have not gotten a response. Next step is the better business bereau.

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Product Description:
Graphing calculator is designed for surveying, engineering, math and science professionals and students. Features a large equation library, more than 2,300 built-in functions, 75Mhz ARM9 processor, a SD card slot with formatting functions, RPN, Algebraic and Textbook data entry, large high-contrast screen (9 lines x 33 characters), serial port and plastic casing. Easily performs complex arithmetic and calculus functions with advanced Computer Algebra System (CAS). Calculate advanced expressions and view solutions in 2-D or 3-D graphical representation. 2.5MB total memory includes 512KB RAM plus 2MB flash ROM for performing future upgrades. Enhanced HP keypad with redefinable keyboard and menu keys reduces keying errors. Customize data with four font sizes and styles. HP Solve application allows you to type and store an equation, then use to solve any variable. Calculator includes a USB connectivity kit with USB cable, connectivity software and pouch. Runs on four AAA batteries.

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Review of HEWLETT PACKARD COMPANY 50g Graphing Calculator, 12-Digit Pixel Display

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(More customer reviews)Very powerful calculator. Dizzyingly powerful. Excellent display. Positive click buttons. If you're doing basic algebra, trig, logs, it is very easy to use. I find that when doing more advanced functions, I'm always needing to reference something in the manual to get it done. Sometimes hard to find functions on the keypad, since there are as many as 4 labels per key. SD card works well, but causes about a 2 second delay every time you turn on the calculator, which can be a nuisance when you're in a hurry. I like the very large RPN stack capability, as well as controllable font, where you canshow more than just the 6 lines of the stack that it defaults to. Would recommend the 50g to anyone needing a lot of power. I've really only used the 50g in RPN mode, but it will do AOS also.

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Product Description:
The ultimate graphing calculator for surveying, engineering, math and science professionals and students. 2,300 built-in functions. Powerful SD card slot allows you to format your card right in the calculator and expand memory. Choose RPN, textbook or algebraic entry and customize data with four font sizes and styles. Enhanced HP keypad with redefinable keyboard and menu keys for reduced keying errors. Calculate advanced expressions and view solutions in 2-D or 3-D graphical representation on high-contrast display. Global Product Type: Calculators-Graphing; Calculator Type: N/A; Calculator Style: N/A; Power Source(s): Battery.

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Review of Touch-Screen Graphing Calculator

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(More customer reviews)I have owned numerous calculators by HP, TI, Sharp, Casio, etc., but this new Classpad 300 Plus that was just released a few weeks ago with Casio's latest operating system (OS 3.0) and Classpad Manager 3.0 is just fabulous. It is now in common use in Europe, especially in Germany and also in Australia and in New Zealand. If you purchase(d) the version with OS 2.0, you can still upgrade electronically to the newest version using the Classpad Manager Version 3.0 directly which has a number of very nice new features/functions. This calculator should also be in common use in the USA as well, but regrettably the financial dominance of TI in our marketplace (and the impending arrival of the new TI NSpire calculator) make the likelihood of its acceptance very soon quite small, unless people like myself write reviews like this to promote educators to really get involved with this new product. The real advantage of both the Classpad as well as the TI NSpire calculator (which is not a pen-based product like the Classpad) is the great software that installs on PC's so that a complete emulation of its operations is possible even without the calculator being physically available. It addition, however the Casio (OS 3.0) will do now do Dirac Delta functions, Heaviside Step functions, Fourier and Laplace Transforms (including Fast Fourier Transforms, i.e., FFT's), First order ordinary differential equations, financial analyses, and of course it already performed complex number analyses, etc.
The operating feature on the Classpad that appeals to me the most however is the pen-based drag and drop operations using the Computer Algebra System (CAS) and the interactive menu between each of the numerous types of submenus on the device. Any operation worked on in one area (Graphs and Tables for example) can readily be copied and pasted into another area (Statistics, Spreadsheets, Sequences, etc) just to name a few of the numerous possibilities. The E-activity submenu on the Casio supports presentations to an audience and is the analog for the Classpad of the TI NSpire's 4 screens of information that can all be put on to a single screen at once (analyzing a problem using a geometrical representation in the form of a drawing or a picture, a word statement of the problem, an analytic or numerical equation solution and a graph of the results). Finally, the results can all be ported back and forth and printed/stored, etc. between the Classpad Manager software/emulator and the calculator itself which is simply fantastic to use. I have had this for almost a month now and I am just begining to appreciate what it can do for me daily in my work as a scientist. If students get exposed to these devices in a late middle school curriculum and beyond (after they first master many of the basics of mathematics and science), in my opinion they will want to continue to grow into math and science in their later years and become excited leaders in science and engineering that this country has been famous for having for most of the last 60 years.

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Product Description:

Main Features
Manufacturer: Casio Computer Co., Ltd
Manufacturer Part Number: CLASSPAD300
Manufacturer Website Address: www.casio.com
Product Type: Graphic Calculator
Display Screen:- LCD
Standard Memory: 500KB RAM, 4MB ROM
Power Source: Battery

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