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Casio CFX-9850G PLUS Function Manual
Casio CFX-9850G PLUS Function Manual

Casio CFX-9850G PLUS Function Manual

10. sketch function
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Sketch Function

The sketch function lets you draw lines and graphs on an existing
graph.
• Note that Sketch function operation in the STAT, GRAPH,
TABLE, RECUR and CONICS Modes is different from Sketch
function operation in the RUN and PRGM Modes.
10-1 Before Using the Sketch Function
10-2 Graphing with the Sketch Function
Chapter
10

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Summary of Contents for Casio CFX-9850G PLUS

  • Page 1: Sketch Function

    Chapter Sketch Function The sketch function lets you draw lines and graphs on an existing graph. • Note that Sketch function operation in the STAT, GRAPH, TABLE, RECUR and CONICS Modes is different from Sketch function operation in the RUN and PRGM Modes. 10-1 Before Using the Sketch Function 10-2 Graphing with the Sketch Function...
  • Page 2: Before Using The Sketch Function

    10-1 Before Using the Sketch Function Press ! 4 (Sketch) to display the sketch menu. STAT, GRAPH, TABLE, RECUR, CONICS Mode P.166 • {Cls} ... {clears drawn line and point} P.155 • {Tang}/{Norm}/{Inv} ... {tangent}/{line normal to a curve}/{inverse graph} P.157 •...
  • Page 3: Graphing With The Sketch Function

    10-2 Graphing with the Sketch Function The sketch function lets you draw lines and plot points on a graph that is already on the screen. All the examples in this section that show operations in the STAT, GRAPH, TABLE, RECUR, and CONICS Modes are based on the assumption that the following P.112 function has already been graphed in the GRAPH Mode.
  • Page 4 10 - 2 Graphing with the Sketch Function u u u u u To draw a tangent in the RUN or PRGM Mode The following is the command syntax for drawing a tangent in these modes. Tangent <graph function>, < -coordinate>...
  • Page 5 10 - 2 Graphing with the Sketch Function 3. Press w to draw the line. u u u u u To draw a line normal to a curve in the RUN or PRGM Mode The following is the syntax for drawing a line normal to a curve in these modes. Normal <graph function>, <...
  • Page 6 10 - 2 Graphing with the Sketch Function k k k k k Plotting Points [Sketch]-[PLOT] When plotting points on a graph, first display the sketch menu and then press 6 (g) 1 (PLOT) to display the plot menu. • {Plot} ... {plot a point} •...
  • Page 7 10 - 2 Graphing with the Sketch Function 1. After entering the RUN Mode, display the sketch menu and perform the following operation. !4(Sketch)6(g) 1(PLOT)1(Plot)c,c 2. Press w and the pointer appears on the display. Press w again to plot a point.
  • Page 8 10 - 2 Graphing with the Sketch Function u u u u u To turn plot points on and off in the RUN or PRGM Mode The following are the syntax for turning plot points on and off in these modes. •...
  • Page 9 10 - 2 Graphing with the Sketch Function 4. Display the sketch menu and then press 6 (g) 2 (LINE) 1 (Line) to draw a line to the second dot. u u u u u To draw a line between any two points in the STAT, GRAPH, TABLE, RECUR and CONICS Modes [Sketch]-[LINE]-[F·Line] Example...
  • Page 10 10 - 2 Graphing with the Sketch Function k k k k k Drawing a Circle [Sketch]-[Crcl] You can use the following procedures to draw a circle on a graph. u u u u u To draw a circle in the STAT, GRAPH, TABLE, RECUR and CONICS Modes Example To draw a circle with a radius of R = 1 centered at point (1, 0)
  • Page 11 10 - 2 Graphing with the Sketch Function k k k k k Drawing Vertical and Horizontal Lines [Sketch]-[Vert]/[Hztl] The procedures presented here draw vertical and horizontal lines that pass through a specific coordinate. u u u u u To draw vertical and horizontal lines in the STAT, GRAPH, TABLE, RECUR and CONICS Modes Example To draw a vertical line on the graph of...
  • Page 12 10 - 2 Graphing with the Sketch Function Example To draw on the graph of + 2)( – 2) 1. After drawing a graph, display the sketch menu and then press 6 (g) 6 (g) 1 (PEN) to display the pointer in the center of the screen. 2.
  • Page 13 10 - 2 Graphing with the Sketch Function u u u u u To insert text in the RUN or PRGM Mode The following is the syntax for inserting text in these modes. Text <line number>, <column number>, “<text>” • The line number can be specified within the range of 1 to 63, while the column number can be specified in the range of 1 to 127.
  • Page 14 10 - 2 Graphing with the Sketch Function u u u u u To check the on/off status of a pixel [Sketch]-[Test] While the sketch menu is on the screen, press 6 (g) 6 (g) 4 (Test) and then input the command shown below to check the status of the specified pixel. 1 is returned when the pixel is on, and 0 is returned when the pixel is off.

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