Press to view the zoom menu.

Press to view more options.

Press the number associated with an option or use the cursor keys to select an option and press .

Press to select ZBox which defines a viewing window by selecting the corners of the box.

Press to select Zoom In which displays a smaller viewing area of the graph; magnifying the current graph.

Press to select Zoom Out which displays a larger viewing area of the graph; reducing the current graph.

Press to select ZDecimal which sets Xmin = -4.7, Xmax = 4.7, Ymin = -3.1, and Ymax = 3.1. Each pixel represents 0.1 units. The tic marks on each axis are equally spaced.

Press to select ZSquare which adjusts Xmin and Xmax so that the tic marks on the x axis are spaced the same as those on the y axis. This makes a circle appear round.

Press to select ZStandard which which sets Xmin = -10, Xmax = 10, Ymin = -10, and Ymax = 10.

Press to select ZTrig which sets Xmin = -6.152285 about 2, Xmax = 6.152285 about 2, Xscl = 1.5707963 about /2, Ymin = -4, Ymax = 4 and Yscl = 1 in radian mode and Xmin = -352.5, Xmax = 352.5, Xscl = 90, Ymin = -4, Ymax = 4, and Yscl = 1 in degree mode.

Press to select ZInteger which sets Xscl = 10 and Yscl = 10, and centers the graph at the cursor location.

Press to select ZoomStat which defines the viewing window so that all data points are shown.