Graphmatica...

is a powerful, easy-to-use, equation plotter with numerical and calculus features:

• Graph Cartesian functions, relations, and inequalities, plus polar, parametric, and ordinary differential equations.
• Up to 999 graphs on screen at once.
• Data plotting and curve-fitting features.
• Numerically solve and graphically display tangent lines and integrals.
• Find critical points, solutions to equations, and intersections between Cartesian functions.
• Print your graphs or copy to clipboard in bitmap or vector format in black-and-white or color.
• On-line help and demo files make getting up to speed a snap.

See the complete feature list and large screen shot for Windows...for Mac OS X...for iOS.

Free Trial Download Download Graphmatica 2.2c for Windows [856 KB] Runs on all 32-bit and 64-bit Unicode-enabled versions of Windows (2000/XP/Vista/7). English only—see translation pages for other languages. Download Graphmatica 2.2.3 for Mac OS X [2.6 MB] Runs on Intel-based Macs using OS X 10.6 or higher. English, Français, Español, Dansk Installing Graphmatica See the installation instructions if you're not sure what to do once you've downloaded the program. What's new 5/10/13: Version 2.1.6 for iOS now available on the App Store 5/4/13: Version 2.2c for Windows and 2.2.3 for Max OS X now available 2/2/13: Version 2.2b for Windows now available 12/17/12: Version 2.2.2 for Mac OS X now available on the Mac App Store The what's new page has a log of older changes. Support Check the bug report page periodically for information on known bugs, workarounds, and patch releases. View the Frequently asked questions. Browse User-contributed downloads.

Ordering Order now online, by mail, or FAX. Translated versions Graphmatica en Español Graphmatica en Français Graphmática em Portugues Graphmática em Portugues Graphmatica - dansk Graphmatica in Italiano Graphmatica - svensk Graphmatica - Polski Graphmatica στα Ελληνικά Korean -- courtesy of ArmTech System Inc. Japanese -- courtesy of LightStone Corp. I would love to see this list grow! Contact me if you are interested in translating the program and/or help file into your native language. Distributors Important information for Shareware distributors. Please read before you download the program to distribute it.