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Casio CFX-9970G Manual

16. recursion table and graph
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Chapter
Recursion Table and
Graph
You can input two formulas for any of the three following types of
recursion, which you can then use to generate a table and draw
graphs.
• General term of sequence {
• Formulas for linear recursion between two terms, made up of
a
a
n
,
, and
n+1
n
• Formulas for linear recursion between three terms, made up of
a
a
a
,
,
, and
n+2
n+1
n
16-1 Before Using the Recursion Table and Graph Function
16-2 Inputting a Recursion Formula and Generating a Table
16-3 Editing Tables and Drawing Graphs
a
}, made up of
n
n
a
n
and
n
16

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Summary of Contents for Casio CFX-9970G

  • Page 1 Chapter Recursion Table and Graph You can input two formulas for any of the three following types of recursion, which you can then use to generate a table and draw graphs. • General term of sequence { }, made up of •...
  • Page 2: Before Using The Recursion Table And Graph Function

    16-1 Before Using the Recursion Table and Graph Function u u u u u To enter the RECUR Mode On the Main Menu, select the RECUR icon and enter the RECUR Mode. This causes the Recursion Menu to appear. Selected storage area Press f and c to move.
  • Page 3: Inputting A Recursion Formula And Generating A Table

    16-2 Inputting a Recursion Formula and Generating a Table Example 1 To input + 1 and generate a table of values as the value of change from 1 to 6 Make = 1. 1. Specify the recursion formula type as linear recursion between two terms and then input the formula.
  • Page 4 16 - 2 Inputting a Recursion Formula and Generating a Table • Displayed cell values show positive integers up to six digits, and negative integers up to five digits (one digit used for negative sign). Exponential display can use up to three significant digits. •...
  • Page 5 16 - 2 Inputting a Recursion Formula and Generating a Table 4. Display the table of the recursion formula. At this time, a menu of table functions appears at the bottom of the screen. J6(TABL) Currently selected cell (up to six digits) Value in currently highlighted cell •...
  • Page 6 16 - 2 Inputting a Recursion Formula and Generating a Table u u u u u To specify the generation/non-generation status of a formula Example To specify generation of a table for recursion formula + 1 while there are two formulas stored c1(SEL+C) (Selects recursion formula to which non-generation status is to be...
  • Page 7: Editing Tables And Drawing Graphs

    16-3 Editing Tables and Drawing Graphs You get a choice of four options for editing tables and drawing graphs. • Deletion of a recursion formula table • Drawing of a connect type graph • Drawing of a plot type graph •...
  • Page 8 16 - 3 Editing Tables and Drawing Graphs u u u u u To specify the color of the graph The default color for a graph is blue. Use the following procedure to change the graph color to orange or green. 1.
  • Page 9 16 - 3 Editing Tables and Drawing Graphs Example 2 Draw a graph of + 1 with on the vertical axis and on the horizontal axis, and with the points unconnected. Use the same View Window parameters as those provided in Example 1.
  • Page 10 16 - 3 Editing Tables and Drawing Graphs 2. Press w, and the pointer appears at the pointer start point ( Str = 0.01). • The Y value for the pointer start point is always 0. 3. Each press of w draws web-like lines on the display. This graph indicates that recursion formula = –3 is convergent.
  • Page 11 16 - 3 Editing Tables and Drawing Graphs 2. Press w and then either f or c to make the pointer appear at the pointer start point ( Str = 0.02). • The Y value for the pointer start point is always 0. 3.
  • Page 12 16 - 3 Editing Tables and Drawing Graphs k k k k k Drawing 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. P.224 Example To draw the graph of...