ZOOM 8:ZInteger

In order to see the effects of a ZOOM option, a graph must already be displayed on the screen.  To learn how to enter and graph a function, go to Graphing a Function . For example, the function = is graphed below.  

Screen Picture of TI-83 Calculator

The ZOOM 8:ZInteger option allows the user to select a new VIEWING RECTANGLE that has a selected center, is squared, and Xscl and Yscl are set to 10.  The function performs a Zoom Out to this new squared window.  To use the ZInteger operation, press the ZOOM key, then press 8, and the screens below will appear.

Screen Picture of TI-83 Calculator Screen Picture of TI-83 Calculator

Next, locate what is to be the center of the new VIEWING RECTANGLE by moving the cursor to that location with the ARROW keys.  Below, a point close to (1.06,0.968) has been chosen as the center. Press ENTER to view the results.  The resulting VIEWING RECTANGLE is [-46,48,10] X [-30,32,10]. 

 

Screen Picture of TI-83 Calculator Screen Picture of TI-83 Calculator

 



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