HP hp39gPlus User Guide - Page 49
Zoom within a, graph
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To jump directly to a value To turn trace on/off To jump straight to a value rather than using the Trace function, use the menu key. Press , then enter a value. Press to jump to the value. If the menu labels are not displayed, press first. • Turn off trace mode by pressing . • Turn on trace mode by pressing . • To turn the coordinate display off, press . Zoom within a graph ZOOM options One of the menu key options is . Zooming redraws the plot on a larger or smaller scale. It is a shortcut for changing the Plot Setup. The Set Factors... option enables you to set the factors by which you zoom in or zoom out, and whether the zoom is centered about the cursor. Press , select an option, and press is not displayed, press .) Not all available in all aplets. . (If options are Option Center Box... In Out X-Zoom In X-Zoom Out Meaning Re-centers the plot around the current position of the cursor without changing the scale. Lets you draw a box to zoom in on. See "Other views for scaling and splitting the graph" on page 2-14. Divides horizontal and vertical scales by the X-factor and Y-factor. For instance, if zoom factors are 4, then zooming in results in 1/4 as many units depicted per pixel. (see Set Factors...) Multiplies horizontal and vertical scales by the X-factor and Y-factor (see Set Factors...). Divides horizontal scale only, using X-factor. Multiplies horizontal scale, using X-factor. Aplets and their views 2-9
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