Casio CFX-9800G-w Owners Manual - Page 113

rx.o.

Page 113 highlights

ERSCT) (This puts the unit into standby waiting for selection of a graph.) ISECT Specify Graph A. *Pressing 1 changes " • " into • or specification of the first graph. Y=X(X+2) (X-2) ISECT Specify the second graph (Graph C, here) to determine the points of intersection. Y=X 2 Y=X+1 •Use C and ® to move " • " on the second graph. •Intersections are found starting from the left. 74=-0.618033 Yr0.3BIBEE 0 •The next intersection to the right is found. If there is no intersection to the right, nothing happens when you perform this operation. Y=X 2 Y=X+1 ISECT W.EIB0339 V=2.6160339 •You can use to move back to the left. *If there are only two graphs, pressing ILI(ISCT) direct) displays the intersections (selec- tion of the graph is not required). -190- •Determining a Coordinate (x for a given yly for a given x) Example To determine the y-coordinate for x = 0.5 and the x-coordinate for y = 1.8 in the graph y = x (x + 2) (x -2): E33LIP) E(Y-CA) Y=X+1 Specify a graph. El V-CAL •At this time, the unit waits for input of an xcoordinate value. Input the x-coordinate value. ibm Determine the corresponding y-coordinate value. E3 V-CAL rx.o. 5_ Y=X(X+2)(X-2) -191- V-CAL V::-1.B15 rii CA Idx

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ERSCT)
(This
puts
the
unit
into
standby
waiting
for
selec-
tion
of
a
graph.)
Specify
Graph
A.
*Pressing
1
changes
" • "
into
or
specifi-
cation
of
the
first
graph.
ISECT
Y=X(X+2)
(X-2)
ISECT
Specify
the
second
graph
(Graph
C,
here)
to
determine
the
points
of
intersection.
Use
C
and
®
to
move
" • "
on
the
second
graph.
Intersections
are
found
starting
from
the
left.
0
•The
next
intersection
to
the
right
is
found.
If
there
is
no
intersection
to
the
right,
nothing
hap-
pens
when
you
perform
this
operation.
Y=X
2
Y=X+1
74=-0.618033
Yr0.3BIBEE
Y=X
2
Y=X+1
ISECT
W.EIB0339
V=2.6160339
You
can
use
to
move
back
to
the
left.
*
If
there
are
only
two
graphs,
pressing
ILI(ISCT)
direct)
displays
the
intersections
(selec-
tion
of
the
graph
is
not
required).
•Determining
a
Coordinate
(x
for
a
given
yly
for
a
given
x)
To
determine
the
y-coordinate
for
x
=
0.5
and
the
x-coordinate
for
y
=
1.8
in
the
graph
y
=
x
(x
+
2)
(x
-2):
Example
E33
LIP)
E(Y-CA)
Specify
a
graph.
El
•At
this
time,
the
unit
waits
for
input
of
an
x-
coordinate
value.
Input
the
x-coordinate
value.
ibm
Determine
the
corresponding
y-coordinate
value.
E3
Y=X+1
V
-CAL
V
-CAL
rx.o.
5_
Y=X(X+2)(X-2)
V
-CAL
V::
-1.B15
rii
CA
Idx
—190—
-191—