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  HP 50g Graphing Calculator |
 A large, high-contrast display clearly shows every important part of a formula, calculation, or graph. |
 The 50g boasts expansive memory, thanks to an SD card slot. View larger. |
Powerful, Innovative Design For Fast, Accurate Computation
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.
What's in the Box
50G graphing calculator, batteries, user's manual, CD (connectivity software and advanced user's guide), USB cable, and premium pouch..../ HP 50g Graphing Calculator / graphing calculator
HP 50g Graphing Calculator Features
.../ HP 50g Graphing Calculator / graphing calculator
HP 50g Graphing Calculator
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Model Of Item : F2229AA#ABA
Product Brand : HP
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HP 50g Graphing Calculator
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Maximum power available in a hand-held computer : HP 50g Graphing Calculator
The HP-50G is Hewlett Packard's latest offering in the line of top-end calculators stretching back through the HP-49 and HP-48, all the way to the "dawn-era" of scientific calculators in the 1970's, when the HP-65 and 67/97 defined "high-end" calculators. This device is so powerful, and has so many potential capabilities, that in many ways it is much more than a "calculator"; better to call it a handheld "computer", one dedicated to mathematics, rather than general purpose use like a PDA. The HP-50, at only $115, is a lot more affordable than most PDA's too.
In fact, the HP-50g is so powerful that most owners will never tap it's full capabilities. Programing it in SystemRPL or Assembly language opens up an instruction set of some 3000 commands! Even if you don't write software for it, the HP-50g has enormous capabilities to solve complex algebraic and calculus problems right in the built in Equation Solvers and Computer Algebra Systems (the CAS).
For users of more traditional calculators, the HP-50g may seem intimidating , if not overwhelming. One problem that I had right off the bat is that much of the keyboard is dedicated to programming and equation solving, rather than simple math functions. Unleashing the potential of this beast requires programming, whether you do it yourself or buy commercial software. The HP-50g can of course be used to do simple math, but that would be like using a 12 pound sledgehammer to set finishing nails.
Noteable features:
-Programs and user data can be stored on SD flash cards, up to 2 gigabytes. Accessing the calculator's various memory areas is not unfamiliar to anyone who has ever used a PC computer: anything stored in the calculator is an "object" with a name, whether it be a data file, executable program, or program library. Objects can be separated and stored in discrete subdirectories. There are three memory "ports": Port 1 is located in RAM (this is volatile memory that requires maintenance of the CR-2032 memory battery), Port 2 is located in the HP-50g's built-in non-volatile flash memory, and Port 3 is your SD card if one is installed. Programs and program libraries can be executed from any of the three ports; with a 2 gig SD card, this means that the capacity of the HP-50 to store programs and data files is virtually unlimited.
-The RPN Stack shows 7 levels visible, compared to only 2 for lesser calculators like the HP-33s and 35s.
-Graphing capabilities. Not sure whether I will ever actually need this myself, but it's there.
-Connectivity: Comes with a USB cable and software to connect the calculator to your PC for uploading/downloading. Also has a serial port to allow the HP-50 to connect to other devices that use RS-232 comm protocol. For example, with the appropriate cable and software, the HP-50g can be used as a Survey data collector/controller with many brands of Total Stations, digital Theodolites, and digital levels.
CONCLUSION- This is the "ultimate" calculator, and probably "too much" calculator for most people who are not nuclear physicists or aerospace engineers. The learning curve is very steep, and even the "simplest" of the three available programming languages (UserRPL) is not "easy" to learn. For general use by engineering or surveying students, or anyone else who just needs a good general purpose algebra and trig machine with good programmability, the HP-33s and 35s are much easier to learn and make use of right out of the box. The HP-50g is not allowed in the National (NCEES) Engineer or Land Surveyor exams (it is allowed in some of the State-Specific exams). The HP-33s and 35s are allowed in NCEES exams, as of November 2007. Be sure to check the NCEES website for changes in their calculator policy before you walk into one of their exams, as the policy does change occasionally (the HP-35s was just added to the "Approved" list in Nov. 2007)
UPDATE: September 2010. This calculator really goes through batteries, especially if you run processor or graphics intensive programs a lot. While I was developing a State Plane Coordinates conversion program for it, my HP-50 was eating a set of batteries about every two weeks. Recommend you run it off of a USB power source when possible to save the batteries.