Casio fx-6200G - Page 43

™@ Zoom function
This function lets you enlarge or reduce the x- and y-coordinates. if you use the
Trace or Plot function to locate the pointer at a specific point on the graph, the
enlargement/reduction is performed using the pointer location as the center point.
*Enlarging a graph
Example| To enlarge the graph for y= sinx by a factor of 1.5 on the x-axis
and 2.0 on the y-axis. Use the following range parameters for the
original graph.
Xmin ; ~360 Ymin : -1.6
Xmax: 360 Ymax: 1.6
Xscl : 180 Yscl : 1
After specifying the range parameters, graph y=sinx,
: *Whenever you try to change the factor vaiue while a graph is displayed, the dis-
: play changes to the text screen automatically. To return to the graph screen after
! changing the factor value, press or f.
lor G2)
Press fix] to enlarge the graph according to
the factors you specified.
|
Zoom)
t
! Let's take another look at the tange parameters.
(eae)
|e
ea
{
Xmin
:
~240
Ymin
:
~0.8
|
Xmax:
240
Ymax:
0.8
Xscl
:
180
Ysel
:
1
Press
Gii)fike)
for
the
factor specification
|
if
you
press
again,
the
graph
Is
enlarged
once
more
by
the
factors you
speci-
‘screen,
fied.
To
return
the
graph
to
its
original
size,
press
Ga
Gat),
|
*Reducing
a graph
To
reduce
the
graph
for
y=
sinx
by
a
factor
of
1.5
on
the
x-axis
and
2.0
on
the
y-axis,
Use
the
following
range
parameters
for
the
original
graph.
Xmin
:
-360
-
Ymin
:
+1.6
OCIS)
Xmax:
360
Ymax:
1.6
Xscl
:
180
Yscl
:
1
After
specifying
the
range
parameters,
graph
y=sinx,
&
Gi)
EES
:
Gane)
9
Press
(wi{fa)
for
the
factor specification
ie)
screen.
SFT
facta)
Xfact?
ey
.
done