Casio CFX-9800G - Page 114

Specify a graph.
FA(X-CA)@EE
*At this time, the unit waits for input of a »-
coordinate value.
input the: y-coordinate value.
(3 2
Determine the corresponding x-coordinate value.
Exe}
Hae. 31SU097 Y=3.2
“lt there is more than one x-coordinate value for a given y-coordinate value or more than
one
y-coordinate
value
for
a
given
x-coordinate
value,
use
@
and
@
to
move
between
them.
The display used for the coordinate values depends on the graph type as shown below.
«Polar Coordinate Graph
6=0. SUS3061
«Parametric Graph
elnequality
Graph
=I
¥<-1
*Note that you can not determine a y-coordinate for a given x-coordinate with a paramet-
ric graph. :
*If there is only one graph, pressing F)(Y-CA)/F4)(X-CA) directly displays the x-coordinate/y-
coordinate (selection of the graph is not required).
192
Determining the Derivative for a Given Point
Example}
To
determine
the
derivative
at
the
origin
(x,
y)
=
(0,
0)
for
the
graph
y
=
¥
(x
+
2)
-2):
as
ee
ae
EO), ~- :
Calculate the coordinate value and derivative.
[F3)(d/dx)
*The coordinate for the leftmost point on the dis-
play and the derivative appears on the display
for graph whose function is stored in the lowest’
numbered memory area.
@©O®8-®
«Pressing @ and @® moves the pointer.
“Polar Coordinate Graph rn O61 |
7 ra 4=0
*Parametric Graph T=0 Wwe
fuee 4=0 yi
*Inequality Graph Ws-2
#20 YA-B
—193—