HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Strona 128

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Option Result
Center on Cursor Redraws the plot so that the cursor is in the center of the screen. No scaling occurs.
Box See Box zoom on page 80.
In Divides the horizontal and vertical scales by X Zoom and Y Zoom (values set with the Set Factors option).
For instance, if both zoom factors are 4, then zooming in results in 1/4 as many units depicted per pixel.
(Shortcut: press .)
Out Multiplies the horizontal and vertical scales by the X Zoom and Y Zoom settings. (Shortcut: press
.)
X In Divides the horizontal scale only, using the X Zoom setting.
X Out Multiplies the horizontal scale only, using the X Zoom setting.
Y In Divides the vertical scale only, using the Y Zoom setting.
Y Out Multiplies the vertical scale only, using the Y Zoom setting.
Square Changes the vertical scale to match the horizontal scale. This is useful after you have done a box zoom, X
zoom or Y zoom.
Autoscale Rescales the vertical axis so that the display shows a representative piece of the plot given the supplied x
axis settings. (For Sequence, Polar, parametric, and Statistics apps, autoscaling rescales both axes.) The
autoscale process uses the rst selected function to determine the best scale to use.
Decimal Rescales both axes so each pixel is 0.1 units. This is equivalent to resetting the default values for xrng
and yrng.
Integer Rescales the horizontal axis only, making each pixel equal to 1 unit.
Trig Rescales the horizontal axis so that 1 pixel equals π/24 radians or 7.5 degrees; rescales the vertical axis
so that 1 pixel equals 0.1 units.
Undo Zoom Returns the display to the previous zoom.
NOTE: This option is only available after a zoom operation has been performed.
Box zoom
A box zoom enables you to zoom in on an area of the screen that you specify.
1.
With the Plot view menu open, tap and select Box.
2.
Tap one corner of the area you want to zoom in on and then tap .
3.
Tap the diagonally opposite corner of the area you want to zoom in on and then tap .
The screen lls with the area you specied. To return to the default view, tap and select
Decimal.
You can also use the cursor keys to specify the area you want to zoom in on.
80 Chapter 6 Introduction to HP apps
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