
Example: Overdraw the graph for y= cosx on the graph for y=sinx
First, draw the graph for y=sinx.
Next, draw the graph for y=cosx without changing the exiting range
*** Built-in function graphs cannot be used in multi-statements and cannot be written into program.
3.2 USER GENERATED GRAPHS
Built-in function graphs can also be used in combination with each other. Graphing a formula such as y=2x
2
+3x-5
makes it possible to visually represent the solution.
Unlike built-in functions, the ranges of user generated graphs are not set automatically, so graphs produced outside of
the display range do not appear on the display.
3.2.1 Range parameters
After pressing the
key, you can look up and specify the range parameters for the x- and
y- coordinates. Range parameters consist of maximum and minimum values for each axis, as well as their
scales (distance between hash marks).
Before drawing a graph, you should first specify range parameters to set the size of the graph.
●
Range parameter types
Range parameters consist of the following:
Xmin . . . . minimum value of the x-axis
Xmax . . . . maximum value of the x-axis
Xscl . . . . . scale of the x-axis
Ymin . . . . minimum value of the y-axis
Ymax . . . . maximum value of the y-axis
Yscl . . . . . scale of the y-axis
●
Specifying range parameters
Whenever you press the
key (except in the BASE-N mode), the range parameter setting
screen appears on the display. Enter the value you want to specify for the displayed parameter and then
press .
Example: Change the range parameters on the left to those on the right.
Xmin :
0
→
-5
Ymin :
-10
→
-5
Xmax :
5
→
5
Ymax :
10
→
15
Xscl :
4
→
2
Yscl :
4
→
4
Specifies –5 for Xmin
Xmax does not change, so simply press .
Specifies 2 for Xscl
Specifies -5 for Ymin
- 38 -
Copyright L
EXIBOOK
2002
GB
Graph
Range
Range
Range
sin
EXE
Graph
cos
EXE
X
ALPHA
EXE
Xmin?
0.
Xmin?
-5_
Xmax?
5.
Xscl?
4.
Xmin?
-10.
EXE
5
SHIFT
(-)
EXE
EXE
2
EXE
2
SHIFT
(-)
Содержание GC1000i
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