Graphing to Interpret Relationships
Online
Shodor Interactive: GraphIt
GraphIt is a multi-functional tool for graphing and displaying data. The data window allows the user to plot ordered pairs in a standard x,y format. The function tool enables the user to input a function, and choose to Show Tabular Data to display a table with the solutions to the function. From within the Tabular Data window, one can choose to plot the solutions, and the graph on the main page will be updated accordingly, showing points as well as the line drawn through those points.
Holt Learning Online: Online Graphing Calculator
An online Graphing Calculator, that can be used to graph up to four equations simultaneously. Standard graphing calculator buttons are available to allow for simple input of an equation, or the equation could be entered manually. A table is provided to find solution sets to a particular equation, or to demonstrate the effects that changes in the independent variable have upon the dependent variable. The graph can also be used to simply plot points on the coordinate plane.
CLIPS Calculator
The CLIPS Calculator is a multifunction online calculator. It can serve as a four-function, scientific, graphing, or conversion calculator. Colored buttons give the user the ability to change the color theme for the calculator. The creators also offer the option to download the SWF (Flash) file for offline use. This file can be opened from within a browser or added to an HTML file to be automatically opened by a browser.
Offline/Local
Microsoft Math (Win)
Microsoft Math is a very versatile, all-in-one tool. It sports a 2D/3D graphing calculator for graphing equations and functions; a step-by-step math problem solver; a formula and equation library for quick access to commonly used equations and formulas; a triangle solver for exploring the multiple facets of triangles, such as sides and angles; a unit conversion tool; and handwriting support.
Grapher (Mac)
Grapher is located under UTILITIES in the Applications folder
Grapher is a 2-D and 3-D graphing program, located in the Utilities Folder, in Mac OS X. Simply type in an equation to see it graphed. You can graph multiple equations at one time.
CLIPS Calculator
The CLIPS Calculator is actually an online calculator, but the creators allow for the download of the SWF (Flash) file, making it available offline. The file can be opened from within a browser or added to an HTML file to be automatically opened by a browser. It can serve as a four-function, scientific, graphing, or conversion calculator. Colored buttons give the user the ability to change the color theme for the calculator.