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HP49G HP49G+ HP 49 HP 49G HP 49 G+ HP-49 HP-49G HP-49G+

The HP48GX has long been the backbone of the Land Surveying, Geomatics, and Engineering Hewlett Packard 49G+ Graphing Calculatorindustries.  Land Surveyors have relied on the HP48 to run their COGO cards and total stations, engineers have relied on the HP-48 to store and run hydraulics and statics formulas, and students have craved the memory to store custom-made formulas and programs.  Now, Hewlett Packard has chosen to discontinue the HP48GX.  Why would they do such a thing?!?

I'll tell you.  It's because the HP49G+ surpasses the HP48GX in every way.  It comes equipped with a whopping 1.13Mb of on-board memory (compared to 128kb for the HP48GX), add-on slots, and much more.

Detailed Specifications HP49G+

  • 131-by-80-pixel display, up to 9 lines by 33 characters
  • RPN, algebraic, and textbook entry system logic
  • 1.13 MB memory; over 2300 built-in functions
  • Advanced statistical, mathematical, scientific, graphing, and programming features
  • Carrying pouch, batteries, and USB cable included
  • Display size: 131 x 80 pixels (up to 9 lines x 33 characters)
  • Entry system logic: RPN, algebraic and textbook
  • Built-in functions: Over 2300
  • Memory/registers: 1.13MB memory; 512KB RAM (330KB user) plus 2MB Flash ROM (800KB user)
  • Menus, prompts, etc.: Yes
  • Keyboard: Numbers and letters
  • Statistical functions: Sample standard deviation, mean; confidence interval and hypothesis tests; linear regression; Sigma x, Sigma y, Sigma x^2, Sigma y^2, Sigma xy; weighted mean; edit, save, name, list; curve fit (LIN, LOG, EXP, POW)
  • Mathmatical functions: +, , , , square root, 1/x, +/, Ln, e^x, xth root of y, y^x, LOG, 10^x, x^2, %, pi, n!; fractions; degrees, radians or grads mode; trigonometric functions/ inverses; hyperbolics/inverses; numeric and symbolic integration
  • Scientific functions: Decimal hrs/hrs min sec conversions; polar/rectangular conversions; angle conversions; base conversions and arithmetic; unit conversions; bit, boolean graphics
  • Graphing functions: 2-D function, polar, parametric plot; 3-D, differential equation, bar plot; histogram, scatter plot; find: intersect, extremum, slope, area; zoom, trace, co-ordinates, shade
  • Programming features: Root finder: HP solve; user memory: 1.13MB; branching
  • Expansion port: SD card (sold separately)
  • Base-N function: Binary, octal, decimal, and hexadecimal number calculation and conversion, complement calculation
  • Numerical precision: Display: 12 digits, exponent (-499 to +499); internal (intermediate): 15 digits, exponent (-49999 to +4999); infinite precision for integers
  • Width: 3.4 inches
  • Depth: 0.9 inches
  • Height: 7.2 inches
  • Weight: 7.7 ounces

Download the HP49G+ Manual (.pdf)

The HP49G has now been discontinued, replaced by the HP49G+, much in the same way the HP48SX was replaced by the HP48GX, but you can still find them on E-Bay.  The HP49G featured less memory and no expansion slots for not that much less money, but was introduced before the HP49G+ came out.

Slowly, some software companies are starting to come out with surveying software that is compatible with the HP49G+.  The main problem is that it lacks the serial cable interface to connect to most total stations.  However, I'm sure it's only a matter of time before there is an adapter available, or total stations will start coming with USB or Bluetooth.

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Other HP48/49 Info.


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