### II. Setting Windows and Styles

A. Overview

2. Zoom - F2

The Zoom menu offers you several preset windows and numerous other options. In this section, we will look only at some of the preset windows. There are many times when one of these options will work well with the function you are graphing. To access the Zoom menu, press or . These will be discussed in more detail in the section on Working With Graphs.

 Press to get this window. Then press to access the Zoom menu.

 1:ZoomBox This allows you to box in a particular area of the graph and then zoom in on that selected portion. 2:ZoomIn You can select a point on the graph and then zoom in or zoom out with that point as the center. The amount of zoom is defined by SetFactors (see below). 3:ZoomOut 4:ZoomDec This is one of the most useful windows. It is also called a friendly window because the Trace key will move in set increments. The window size is x:[-7.9,7.9] and y:[-3.8, 3.8]. 5:ZoomSqr This adjusts the Window variables so that the ticks on each axis are the same distance apart. This will allow squares and circles to be shown in correct proportions. 6:ZoomStd Sets the Window variables to the default values. x:[-10,10] and y:[-10,10]. 7:ZoomTrig Sets the Window variables to increments using , and are appropriate for many trigonometric functions. 8:ZoomInt You can select a new center point, and the scales are set to 10. 9:ZoomData This adjusts the Window variables so that all selected statistical plots will be seen. A:ZoomFit Sets a window that shows the maximum and minimum value of Y with with given X window. B:Memory 1:ZoomPrev - restores the window to the previous setting 2:ZoomSto - allows you to store a window 3:ZoomRcl - recalls a stored window C:SetFactors Use this to set the factors by which the calculator zooms in or out.
 Window Zoom Trace Table
 I. Entering Graphs II. Windows & Styles III. Working with Graphs IV. Special Graphs V. Other Graph Modes