Sharp EL-9900 operation manual VLine Example, Tlineequation, x-value, Tline Example

Chapter 6: Advanced Graphing Features — Advanced Keyboard

From the GRAPH

window

5 T_line(

From the Calculation

screen

Note:

V_Line

Example

•Draw a vertical line manually.

1.Press @dA4.

2.Use the cursor navigation keys ({}; ') to move the flashing cursor to the appropri- ate position.

3.Press Eto draw the line.

Draws a tangental line at the specified point of a graph curve.

T_line(equation, x-value)

Example

•Draw the tangental line of y = x2 at x = 1.

1.Select T_Line(.

2.Enter “x2, 1)” on the line.

3.Press E.

It is also possible to specify a function equation from Y0 to Y9 if stored. (T_line(Y1, 1))

From the GRAPH

window

T_line(

Example

•Draw a tangental line by manually specifying the point.

1.Select T_Line(.

2.Use ;'to move the flashing cursor on the targeted graph line.

Use {}to select a graph to draw the tangental line.

3.When the point is set at the tangent point, press

E.

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