A Little Color Goes a Long Way
Portrait 4 provides graphs with high visual impact that are colorful, accurate and extremely detailed. It comes with a set of on-board tools that can be used to conduct in-depth investigations and to highlight key elements of your graphs.Graph in Color
 Portrait 4 |
 Traditional Graphing Calculator |
A little bit of color goes a long way, especially if the problem being solved involves plotting and comparing multiple equations. Portrait 4’s explicit visuals save teachers time and students frustration, as teachers no longer need to keep pointing to different curves over and over again to indicate which is which.
* Note: Screen shots are taken on Windows Mobile, however graphing functionality is the same on all of our supported platforms: Windows, Mac, Linux, Web & Windows Mobile.
Change Number of Points Plotted
 Sin (1/x): 100 points |
 Sin (1/x): 500 points |
Changing the number of points plotted to get more accurate representations of functions and equations can be extremely helpful. Portrait 4 provides the power to change the number of points plotted for graphs from 2 to 10000 so accuracy is never an issue.
Shade Areas
 Unshaded Curve |
 Shaded Curve |
Shading portions of graphs can help better highlight the mathematical relationships they represent. With Portrait 4 students can add shaded areas greater or less than the plots displayed for any graph.
Track Points
 Track Points in a Curve |
 Lock on Intersect Points |
Tracking specific x and y coordinates and defining points of intersection are critical tasks when working with graphs. Portrait 4 provides a tracking tool students can move along a graph to see specific coordinates. Every time functions intersect or cross the x or y axis, a small box displaying the coordinates for the point of intersection pops up.
Zoom In and Out
 Graph before zoom |
 Graph after zoom |
Zooming in to get a more detailed look at particular portion of a graph is often necessary to obtain the information needed to solve a problem. Portrait 4’s zooming feature enables students to zero in on any portion of a graph they need to analyze in more detail.
Add Graph Paper
 Graph before grid is added |
 Graph after grid is added |
Drawing equations and functions on graph paper makes it easier to visualize their slope and their coordinate points. A graph paper background can be quickly and easily added to any plot a student is working with.
See Derivatives and Integrals
 Screen shot Derivative |
 Screen shot Integral |
When working with function plots in Calculus, finding derivatives and integrals is essential. Portrait 4 makes it extremely easy to see derivative and integrals and their equations.
* Note: Screen shots above are taken on Windows Mobile, however graphing functionality is the same on all of our supported platforms: Windows, Mac, Linux, Web & Windows Mobile.
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