User Generatede Graphs - LEXIBOOK GC500i Instruction Manual

GB
Example: Overdraw the graph for y= cosx on the graph for y=sinx
First, draw the graph for y=sinx.
Graph
sin
*** 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
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
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
G
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
G
Whenever you press the
screen appears on the display. Enter the value you want to specify for the displayed parameter and then
press .
EXE
Example: Change the range parameters on the left to those on the right.
0 → -5
Xmin :
5 → 5
Xmax :
4 → 2
Xscl :
Specifies –5 for Xmin
SHIFT (-)
Xmax does not change, so simply press
Specifies 2 for Xscl
2 EXE
Specifies -5 for Ymin
SHIFT (-)
- 38 -
Next, draw the graph for y=cosx without changing the exiting range
Graph
EXE
key, you can look up and specify the range parameters for the x- and
Range
key (except in the BASE-N mode), the range parameter setting
Range
-10 → -5
Ymin :
10 → 15
Ymax :
4 → 4
Yscl :
Range
5 EXE
.
EXE
2 EXE
cos
ALPHA X EXE
Xmin?
0.
Xmin?
-5_
Xmax?
5.
Xscl?
4.
Xmin?
-10.
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EXIBOOK
+3x-5
2
2002