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.
The ZOOM 10:ZoomFit option allows the user to select a new VIEWING RECTANGLE that has the same Xmin and Xmax, but recalculates to show ALL y values. In the case of the function above, even though there are infinite values of y in both the positive and negative direction, the calculator tries to show as many as it can. The resulting new VIEWING RECTANGLE is [-10,10,1] X [-949,951,1].
To use the ZOOMFIT operation, press the ZOOM key, then press 0, and the screens below will appear.
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