Sharp el-9950

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Chapter 4: Graphing Features
4. Graph Modes
• Thiscalculatorhasfourgraphmodes(rectangularcoordinategraph,parametric
coordinate graph, polar coordinate graph, and sequence graph):
• Toselectamode,usetheSETUPmenu(E COORD).
2 PreWin Onselectingthissub-menuitem,thewindowsetuppriortothe
currentzoomsetupwillberecalled,andthegraphwillberedrawn
accordingly.
U
: Pressthisbuttontotracethegraphdrawnonthescreen,toobtain
theX-Ycoordinates:
1. While the graph is displayed,
press the
U
key. The
cursor appears, flashing
on the graph line, with the
presentX-Ycoordinates.
2. Trace the graph using the
;
or
'
keys. The
;
key decreases the value of x,
while the
'
key increases it.
3. Pressingthe
U
key again will redraw the graph, with the
cursor at the center of the screen. If the cursor is moved beyond
the range of the screen, pressing the
U
key will redraw the
screen centered around the cursor.
4. When done, press the
C
key to escape the tracing function.
If more than one graph is displayed on the screen, use the
{
or
}
keys to switch the cursor from one graph to the other.
Note: If the
U
key is not activated, the cursor will not be bound to
thegraph.Pressingthe
;
,
'
,
{
, or
}
keys will
positionthefree-movingashingcursoronthegraphdisplay.
Rectangular(X-Y)
coordinates
Parametric
coordinates
Polarcoordinates Sequence
coordinates