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Chapter 7: List Features
5. Drawing families of curves using the list function
Using list items as coordinates, you can simultaneously draw families of curves.
1. Press
Y
.
2. Enter the equation;
Y1 = {3,
-
2}x
2
+
{5, 3}x
+
{2, 4}
3. Press
G
.
Two graphs are drawn as
shown on the right.
In this case, the first one
represents the equation y =
3x
2
+
5x
+
2 and the second y =
-
2x
2
+
3x
+
4.
You can also use L1 to L6 to enter the equation;
1. Set the lists L1 to L3 as
follows;
{3,
-
2}
⇒
L1,
{5, 3}
⇒
L2,
{2, 4}
⇒
L3, and then
2. Enter the equation as follows.
Y1 = L1x
2
+
L2x
+
L3
6. Using L_DATA functions
The calculator can store up to 10 list groups in memory (L_DATA 0 to L_DATA 9). You
may store or recall any one of these list groups. Each list group can contain up to 6 lists.
1 StoLD StoLD
natural number
(0-9)
Stores the current group of lists (L1 to L6) in L_DATA 0 to 9.
Example
1. Press
@
l
and
select
C
1
.
2. Enter the preferred number
from 0 to 9 and press
E
.
“Done” will appear and the
current lists will be stored in L_DATA #.