LEXIBOOK GC500i Instruction Manual page 42

GB
Reducing a graph
G
Example: 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 :
Xmax :
Xscl :
After specifying the range parameters, graph y=sinx.
SHIFT Cls
Graph
sin
Press
SHIFT Factor
SHIFT Factor
*** whenever you try to change the factor value while a graph is displayed, the display changes to
the text screen automatically. To return to the graph screen after changing the factor value,
press
SHIFT Factor
Press
SHIFT Zoom xl/f
Let's take another look at the range parameters.
Xmin :
Xmax :
Xscl :
If you press
return the graph to its original size, press
To specify the zoom factors within a program
G
Use the following format to specify the zoom factor in a program.
Factor (Xfactor), (Yfactor)
3.2.5 Trace function
This function lets you move a pointer around a graph and display the x- and y- coordinates of the current
pointer location. You enlarge or reduce the x- and y- coordinates. Using the Trace function.
- 42 -
-360 Ymin
360 Ymax
180 Yscl
EXE
ALPHA X EXE
for the factor specification screen.
1.5
EXE
2
EXE
.
SHIFT Factor
to reduce the graph according to the factors you specified.
SHIFT Zoom xl/f
-540 Ymin
540 Ymax
180 Yscl
again, the graph is reduced once more by the factors you specified. To
SHIFT Zoom xl/f
SHIFT Zoom org
: -1.6
: 1.6
: 1
Xfact?
2.
Xfact?
1.5_
Yfact?
0.
Yfact?
2_
Xfact?
1.5
: -3.2
: 3.2
: 1
.
Copyright L
EXIBOOK
2002