Casio CFX-9800G-w Owners Manual - Page 111

Graph, Range, max:5, Y=X+1, Y=XX+2, Y7>4X+2X2.

Page 111 highlights

Pressing a' (?) causes the following menu to appear on the display CRP) a ID El Press the function key below the operation you want to specify. D(Y-CA) "e: (X-CA). 1:1(cl/dx) y-coordinate value for a given x-coordinate x-coordinate value for a giyen y-coordinate Derivative for a given point Except for the intersection of two graphs, all of the following operations are performed after drawing of the following function graphs. Memory Area Y1: y = x+ 1 Memory Area V2: y = x (x + 2) (x - 2) The range parameter settings shown here are also used. Graph Range 12mw scl: 1 Ymin: -5 max:5 scl: 1 •For details on drawing graphs, see section "8-10 Storing Functions in Memory" Starting on page 176. •Determining Roots Example To determine the roots for y = x (x + 2) (x - 2): iC El(RT) (This.puts the unit into standby waiting for _ selection of a graph.) _ hir rITITIX Fl Y=X+1 •A " • " cursor appears on the graph that has the lowest memory area number. L-AOOT -186- Specify the graph you want to use. Y=X(X+2) (X - 2) •UseC)and.®. to move the cursor to the graph whose roots you want to find. ROOT Determine the root. EEO •Roots are found starting from the left. Search for the next root to the right. Y=X(X4-2) (X - 2) X=-2 ROOT V=U Y=X(X+2) (4-2) • If there.is no root to the right, nothing happens when you press C). ROOT X=U V=0 Y7>4(X+2)(X2). ROOT X=2 •You can use ® to move back to the left. *If there is only one graph, pressing Cl(RT) directly displays the root (selection of the graph is not required). -187-

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Pressing
a'
(?)
causes
the
following
menu
to
appear
on
the
display
CRP)
a
ID
El
Press
the
function
key
below
the
operation
you
want
to
specify.
D(Y-CA)
y-coordinate
value
for
a
given
x-coordinate
"e:
(X
-CA).
x-coordinate
value
for
a
giyen
y-coordinate
1:1(cl/dx)
Derivative
for
a
given
point
Except
for
the
intersection
of
two
graphs,
all
of
the
following
operations
are
performed
after
drawing
of
the
following
function
graphs.
Memory
Area
Y1:
y
=
x+
1
Memory
Area
V2:
y
=
x
(x
+
2)
(x
-
2)
The
range
parameter
settings
shown
here
are
also
used.
Graph
Range
mw
12
scl
:
1
Ymin:
-5
max:5
scl
:
1
•For
details
on
drawing
graphs,
see
section
"8-10
Storing
Functions
in
Memory"
Starting
on
page
176.
•Determining
Roots
To
determine
the
roots
for
y
=
x
(x
+
2)
(x
2):
hi
r
rITITIX
Fl
Example
iC
El(RT)
(This.puts
the
unit
into
standby
waiting
for
_
selection
of
a
graph.)
_
•A
" • "
cursor
appears
on
the
graph
that
has
the
lowest
memory
area
number.
Y=X+1
L-AOOT
Specify
the
graph
you
want
to
use.
Use
C)
and.®.
to
move
the
cursor
to
the
graph
whose
roots
you
want
to
find.
Determine
the
root.
EEO
Roots
are
found
starting
from
the
left.
Search
for
the
next
root
to
the
right.
If
there
.
is
no
root
to
the
right,
nothing
happens
when
you
press
C).
Y=X(X+2) (X
-
2)
ROOT
Y=X(X4
-
2) (X
-
2)
ROOT
X=-2
V=U
Y=X(X+2)
(4-2)
X=U
V=0
ROOT
Y7>4(X+2)(X2).
ROOT
X=2
•You
can
use
®
to
move
back
to
the
left.
*If
there
is
only
one
graph,
pressing
Cl(RT)
directly
displays
the
root
(selection
of
the
graph
is
not
required).
-186-
-187-