Hp 48g Graphing Calculator Manual do Utilizador Página 115

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view a
I::’!* [i, ''.rineiiiiy rSirpiy^'ey;
1. Save the currently displayed grob (see above) if you want to keep it.
2. Recall the desired grob (do not use ' delimiters) to level 1,
3. Type PICT into the command line (do not use ’ delimiters).
4. Press (STO).
5. Press fi^fPICTUREl.
Graphic Object Coordinates
Pixels in a grob can be specified with either pixel coordinates or
us e r- u mt coordin ates.
User-unit coordinates Pixel coordinates
-6.5, 3.2) (6.5, 3.2) {#0, #0} ¡#130, #0}
(-6.5, -3.1) (6.5, -3.1) (#0, #63} {#130, #631
User-Unit Coordinates vs. Pixel Coordinates
Pixel coordinates (the default) in a standard size PICT grob are
numbered from i #0 #0 > in the upper-left corner to -C #130 #63 }
in the lower-right corner. Notice that pixel coordinates are given as a
list containing two binary integers—the first designating the column
and the second designating the row. Pixel coordinates are the most
convenient to use when manipulating pictures.
User-unit coordinates depend on the current settings in PPAR (see
chapter 22) but their default values range from 3.2) in the
upper-left corner to (6„5j -3. 1) in the lower-right corner. User-unit
coordinates are given as a complex number (ordered pair), with the
real part representing the horizontal coordinate and the imaginary
part representing the vertical coordinate. User-unit coordinates are
most convenient for use when plotting.
Graphic Objects 9-7
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