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261
3. Each press of w draws web-like lines on the display.
w
↓
w
↓
This graph indicates that recursion formula bn+1 = 3bn + 0.2 is divergent.
• Inputting
bn or n for the expression an+1, or Inputting an or n for the expression bn+1
for linear recursion between two terms causes an error.
uu
uu
uTo draw a recursion formula graph using Dual Screen
Selecting “T+G” for the Dual Screen item of the Set Up Screen makes it possible to
display both the graph and its numerical table of values.
Example To draw the graph of an+1 = 2an + 1 from Example 1, displaying
both the graph and its table
!Z
ccc1(T+G)
(Specifies T+G for Dual Screen.)
J6(TABL)
(Draws the graph and shows the table.)
6(G•PLT)
(Draws plot type graph.)
• Pressing !6 (G↔T) causes the graph on the left side of the Dual Screen to
fill the entire display. Note that you cannot use the sketch function while a graph
is displayed using !6 (G↔T).
Editing Tables and Drawing Graphs 16 - 3
1 23456
P.8
P.258
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