Casio NP20 User Manual page 13

DUAL GRAPH
With this function you can split the display between two areas and display two graphs
on the same screen.
Example: To draw the following two graphs and determine the points of intersection
Y1 = X(X + 1)(X – 2)
Y2 = X + 1.2
SET UP
3
u
1. Press
to specify "G+G" for the Dual Screen setting.
i
2. Press , and then input the two functions.
v(v+b)
(v-c)w
v+b.cw
5
3. Press (DRAW) or
BOX ZOOM
Use the Box Zoom function to specify areas of a graph for enlargement.
2
1. Press (ZOOM)
d e f c
2. Use
to one corner of the area you want to specify and
w
then press .
Quick-Start
ccc2
w
to draw the graphs.
b
(Box).
to move the pointer
19990401
8
(G+G)