Buy HP HP48GX RPN Expandable Graphic CalculatorHP HP48GX RPN Expandable Graphic Calculator Product Description:
- Over 2,300 functions including over 300 for scientific and engineering applications
- Built-in equation library with over 300 formulas and constants
- 2-way infrared communication, RS-232C serial port; supports optional printer
- 128 KB memory; 2 card ports for expandable RAM and ROM
- 2-D and 3-D graphing capabilities
Product Description
The calculator is brand new and comes in a factory sealed package. It has never been openned.
Customer Reviews
Most helpful customer reviews
53 of 57 people found the following review helpful.
PERFECT COMPANION FOR BOTH ENGINEERS AND SERIOUS STUDENTS
By H. Kyu
For a serious electronic engineering student in his senior year in college, calculations extensively revolve around converting units including bases as well as vectors. Compared to it's competitions from TI, it is such a no nonsense super-powerful engineering calculator that even the TI-92 doesn't come close to what this 48-GX can do. Entering numbers in RPN format may be quite tricky at first, but after about 4-hrs later, I came to prefer this format over the algebraic one. RPN totally eliminates the need of parenthesis. Algebriac fans can do algebriac entry and/or display too. It has a massive expendable equation library, so there is no need to carry around a ton of formula sheets. I also own a TI-85 and a CASIO FX-115W. Other than not being able to graph, the little $20 CASIO is much stronger and capable than the TI. It can do integration, derivatives, and can easily convert bases (HEX, BIN, DEC) and vectors (POL, REC). Up until I bought the 48-GX, I only used the CASIO. Now I don't have to use the CASIO anymore. I did some comparisons with my friends and found out that this HP calculator has all the ability of a TI-89 and a CASIO FX-2 as well as the usability of a CASIO-FX-115W, in addition to many more features, including easy expendable memory using cards which can be used like floppy disks to store infinite data, alarm clock, dnld and play music, x-fers to other 48-G/G+/GX by means of infrared light, symbolic calculations that can be converted into a numeric answer in one step, add/sub/mul/div polar and rectangular formats together in the same step, and don't forget the UNDO button when something goes oops. This is only to mention a few. It comes with an intro manual, and a very good comprehensive manual. If you are an engineer or a serious engineering student, one day alone with the 48-GX is all you need to famaliarize yourself with it, and chances are you'll never go back to a weak and overpriced TI again. If you don't need 3D analysis, HP-39G or CASIO FX-2.0 is recommendable, which are equal to TI-86. If you don't need graphing, CASIO FX-115W is a good choice.
22 of 22 people found the following review helpful.The Mercedes Benz of Calculators
By Ken Bourque
Being a college professor of Electrical Engineering for over 30 years, and having used numerous brands and models of calculators and having written reviews of some of them for various publications, there is no doubt in my mind that the HP48GX is indeed head and shoulders above all the other calculators (even the HP49). The RPL entry system is a natural and easy to learn process that mimics the pencil and paper approach that we've all learned in Grammar school arithmetic. The efficiency of input and the ease with which it handles comlex-number calculations is second to none. Formulae can be entered with mixed units and the calculator automatically performs internal conversions to present the answer in whatever valid units you desire. It handles 2-D and 3-D vectors with all the corresponding mathematical operations seemlessly. The infrared connectivity (wireless) and RS232 port (wire) both allow communication between another HP calculator and your computer. This calculator has the right mix of 'function per key' versus 'menu per key' that makes it very easy to negotiate. One can enter a formula in algebraic notation and the calculator can solve for one of the variables in symbolic and/or numeric form (if all the other vales are specified). The keystroke error recovery facility is superb. A couple of days with this calculator and most people cannot go back to their old 'Algebraic Operating System' calculators, with its cumbersome parenthesis, without making a mistake. There is not enough space here to praise this calculator to the extent that it deserves. Over the years with all the students and professionals I've had contact with, I know of no one who has ever regretted purchasing this calculator except for the fact that they realized that they waisted money on purchasing their AOS calculators.
17 of 17 people found the following review helpful.The best calculator in the world
By A Customer
This an incredible machine. Has a bit of a learning curve to be able to harness it's power, though. Has unit conversion, terrific equation capability, and probably more software written for it than any other calculator in the world. If you just need basic calculator functions, however, this isn't the one for you. Also, if you're not familiar with RPN (reverse polish notation, i.e. 4 ENTER 5 + displays 9, instead of algebraic 4 + 5 = displaying 9), then you should avoid it; buy a cheaper RPN machine 1st and see if you can adapt to it. RPN, however, is far superior to algebraic notation once you get used to it. Do NOT waste your money on the HP 49, which I also own, and can't stand. The HP 49 has rubber buttons which are hard to press, and a bizzare color, and is very difficult to use.
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