Education Technology

The Function Editor App

How do I use the quick zoom features to zoom in and out on a graph?

The TI-84 Evo has pre-defined window settings that let you quickly adjust the graph window to a pre-determined level of magnification and scale. To display this menu, press the f key:

1: Zoom Box Lets you draw a box (using the cursor pad) to define the viewing window.
2: Zoom In After you position the cursor and press =, magnifies the graph around the cursor using the zoom factors (default is 2x).
3: Zoom Out After you position the cursor and press =, displays more of the graph centered around the cursor using the zoom factors (default is 2x).
4: Zoom Default Sets the change in X and Y to increments of 0.1 when you use g.
5: Zoom Square Adjusts [Xmin, Xmax] for the set [Ymin, Ymax] to square aspect ratio.
6: Zoom [-10,10] Sets the window variables to a [-10,10] interval for both x and y axes.
7: Zoom Trig Sets the built-in trigonometry window variables.
8: Zoom Fit Adjusts [Ymin,Ymax] to view an entire graph in the [Xmin,Xmax] setting.
9: Zoom Stat Sets the values for currently defined statistical lists.
0: Zoom Quadrant1 Only displays Quadrant 1.
A: Zoom Integer After you position the cursor and press =, X and Y trace on integer values.
B: Zoom Frac1/2 Sets the graphing window to support tracing on fraction values, where possible.
C: Zoom Frac1/3 Sets the graphing window to support tracing on fraction values, where possible.
D: Zoom Frac1/4 Sets the graphing window to support tracing on fraction values, where possible.
E: Zoom Frac1/5 Sets the graphing window to support tracing on fraction values, where possible.
F: Zoom Frac1/8 Sets the graphing window to support tracing on fraction values, where possible.
G: Zoom Frac1/10 Sets the graphing window to support tracing on fraction values, where possible.

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