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HP HP49G Graphing Calculator

HP HP49G Graphing Calculator Review

Price : $179.99

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		Brand:	HP
		List Price:	$179.99
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HP HP49G Graphing Calculator Feature

• Over 2,300 built-in functions for algebra, geometry, trigonometry, statistics/data analysis, calculus, science, engineering
• 2-D and 3-D graphing capabilities
• Algebraic and RPN data entry
• Built-in serial port; supports optional connectivity kit
• Step-by-step mode for dynamic derivation, integration, and linear algebra problem solving

HP HP49G Graphing Calculator Overview

Is it possible to have it all--brains, beauty, and brawn? Hewlett-Packard certainly thinks so, and its HP 49G graphing calculator is its shining example.

There's no getting around the cool styling of the 49G: complete with a sleek metallic blue exterior and a groovy translucent blue hard slide cover, the 49G commands attention. When we were using it in public, it received plenty of looks and inquiries.

But how does it measure up in terms of power? Competing with the notorious Texas Instruments TI89 advanced graphing calculator is tough business, but HP pulls it off with some success. This graphing calculator has all the bells and whistles, including a whopping 1.5 MB of user memory; 2 MB of flash ROM, which enables future software upgrades; a built-in Computer Algebra System (CAS); math, scientific, statistical, financial, and 2-D/3-D graphing capabilities; programming capabilities with reverse Polish notation, assembly, and HP Basic languages; and a unit-to-unit and PC/Macintosh connectivity feature. It also features an equation solver, vectors, lists, arrays, matrices, expressions, and object storing.

One key feature we liked is the history screen, which displays what you've already input, so you can reference it to determine what went wrong and correct it. Another notable function is the 49G's alarm function. You can set the date and time on the calculator, and program the alarm along with a text message to remind you of appointments. You can also set control alarms, which perform functions such as automatically running a program when you're not using the calculator. Additionally, the calculator emits beeps when you enter an incorrect function, which can be annoying at times--especially when you're already frustrated.

One of this calculator's flaws is that it is hard to read the second and third functions above each key. In keeping with the calculator's sense of aesthetics, the print is in blue and red, which is difficult to see, especially in low lighting situations. It also has a one-touch X-variable key, but no Y- or Z-variable keys.

We wished the manual had gone into greater depth and provided clearer examples, but this might be a concern only to those who don't immediately get the full functionality of the 49G. Unlike some manuals we've seen, the 49G does not show both the necessary keys needed to input an equation along with how they appear on the screen. We also would have liked for the manual to include more examples.

If style is just as important to you as functionality, the 49G is the coolest looking calculator we've seen. But if it's pure power you're looking for, you'll probably be just as pleased with any one of the 3-D graphing calculators currently on the market.

Pros:

• Sleek exterior
• Lots of memory
• Full functionality

Cons:

• Alpha and second functions somewhat hard to read
• Manual not fully fleshed out

HP HP49G Graphing Calculator Specifications

The HP49G graphing calculator is an RPN-capable calculator with powerful 3-D graphing, note, and list features. With its advanced built-in Computer Algebra System, you can perform complex arithmetic and calculus functions and solve systems of linear equations, in addition to having dynamic symbolic manipulation and symbolic and numeric solving at your fingertips. You can also make statistical inferences, perform hypothesis tests, and measure confidence intervals that relate to populations. Sample data can be inputted, viewed, and edited in table format (similar to a computer spreadsheet), and then you can plot the results.

The large 1.5 MB memory (512 KB RAM and 1 MB Flash ROM for data storage) encourages taking full advantage of the comprehensive library of third-party calculator programs, games, and software applications. The HP49G doesn't just give you the answer to your equation; it can walk you through the process of finding that answer by using the CAS step-by-step mode for dynamic derivation, integration, and other linear algebra problem-solving techniques. All steps and results are displayed in textbook mode on the 131 x 64 pixel, high-contrast screen. If you aren't fond of textbook mode, try traditional algebraic or RPN input modes.

With its smooth edges, streamlined curves, and light blue metallic exterior, the HP49G is a sleek and modern tool for professionals or students in the sciences, math, and engineering. --Dana Van Nest

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