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1. From the Main Menu, enter the GRAPH mode.
2. Make V-Window settings.
3. On the Setup screen, use the “Sketch Line” setting to specify the line style you want.
(
) … Normal (initial default)
(
) … Thick (twice the thickness of Normal)
(
) … Broken (thick broken)
(
) … Dot (dotted)
4. Input the function of the graph.
5. Draw the graph.
6. Select the sketch function you want to use.*
1
(SKTCH)(Cls) ... Screen clear
(Tang) ... Tangent line
(Norm) ... Line normal to a curve
(Inv) ... Inverse function*
2
_(E)(PLOT)
{Plot}/{Pl
• On}/{Pl • Off}/{Pl • Chg} ... Point {Plot}/{On}/{Off}/{Change}
_(E)(LINE)
{Line}/{F • Line} ... {connects 2 points plotted by (E)(PLOT) with
a line}/{for drawing a line between any 2 points}
(E)(Crcl) ... Circle
(E)(Vert) ... Vertical line
(E)(Hztl) ... Horizontal line
(E)(E)(PEN) ... Freehand
(E)(E)(Text) ... Text input
7. Use the cursor keys to move the pointer ( ) to the location where you want to draw, and
press U.*
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.
*
3
Some sketch functions require specification of two points. After you press U to specify the
first point, use the cursor keys to move the pointer to the location of the second point and
press U.
• You can specify line type for the following sketch functions: Tangent, Normal, Inverse, Line,
F
•Line, Circle, Vertical, Horizontal, Pen
Example Draw a line that is tangent to point (2, 0) on the graph for
y = x (x + 2)
(x – 2).
K GRAPH
(V-WIN)(INIT))
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