Casio FX-CG20 AU User Manual page 192

8. Use the cursor keys to move the pointer (
press w.*
3
1
* The above shows the function menu that appears in the Graph mode. Menu items may
differ somewhat in other modes.
2
* In the case of an inverse function graph, drawing starts immediately after you select this
option. The line style and color setting selected for the Setup screen "Sketch Line" and
"Plot/LineCol" settings are always applied for an inverse function graph.
Some sketch functions require specification of two points. After you press w to specify the
3
*
first point, use the cursor keys to move the pointer to the location of the second point and
press w.
Example Draw a line that is tangent to point (2, 0) on the graph for
x
( – 2).
1 m Graph
2 !3(V-WIN) 1(INITIAL) J
3 !m(SET UP)cccccccc1(COLOR)b(Black)
c1(
)J
4 3(TYPE)1(Y=)v(v+c)(v
-c)w
5 6(DRAW)
6 !4(SKETCH) 2(Tangent)
7 !f(FORMAT)b(Line Style)f(Thin)
c(Line Color)d(Red)J
8 e~ew*
1
1
* You can draw a tangent line in succession by moving the
) to the location where you want to draw, and
pointer and pressing w.
5-51
y x x
= ( + 2)