Graphing calculators

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A graphing calculator (also known as a graphic calculator or graphical calculator) typically refers to a class of handheld calculators that are capable of plotting graphs, solving simultaneous equations, and performing numerous other tasks with variables. Most popular graphing calculators are also programmable, allowing the user to create customized programs, typically for scientific/engineering and education applications.

[Read more in: Wikipedia: Graphing calculator]

Photo author: Jonny from flickr.com

Which Calculator Is Right for You?

This TI Calculator Comparison Chart will help you decide which model fits your needs. You can also find EVERYTHING that you need to know about TI calculators on this website - TI Graphing Calculator FAQ where Ray Kremer responds to common questions about TI calculators seen in discussion groups and provides additional links, tips, and tricks.

More tips on buying a graphing calculator

Ticalc.org: Current and discontinued models
Buying a TI Graphing Calculator: From homeworktips.about.com

Which company makes the best graphing calculators?

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Texas Instruments (TI-89)

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Casio (FX-9750GPlus)

Texas TAK and New York Regents Exams0 points

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HP (50G)

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Sentry Industries (CA756)

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Sharp ( EL9900)

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Graphing Calculators on eBay

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Online alternatives to graphing calculator

GraphCalc is an open source and GPLed computer program that runs in Microsoft Windows and Linux that provides the functionality of a graphing calculator. It is an all-in-one solution to everything from everyday arithmetic to statistical analysis, from betas to Booleans, from cubes to calculus, from decimals to derivatives.

GraphCalc combines all the features of a professional mathematics package with the simplicity of an easy to learn windows interface. It provides user-friendly help and tutorials to guide you through the easy and fun process of mastering GraphCalc.

GraphCalc is a free graphical calculator application that can be downloaded here.

WebGraphing.com offers online graphing and solving calculators for functions, equations, and inequalities. You can get there complete function graphs showing asymptotes and discontinuities automatically, plus tutorial analysis for calculus, precalculus, and algebra; includes 1D, 2D, and Interactive 3D plotting.

At FooPlot you will find the online graphing calculator and function plotter. The website says it's the easiest way to plot functions. Just type fooplot.com/sin(x) or your function into your browser.