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Chapter 4: Graphing Features
04 V_line
From the Calculation
screen
From the GRAPH
window
05 T_line(
From the Calculation
screen
Note:
100
Draws a vertical line on the graph window
V_Line x-value
Draws a vertical line (x = value) on the graph
window.
Example
• Draw a horizontal line of x = 3 .
1. Press @ d A 0 4 and enter
the value 3.
V_Line
Example
• Draw a vertical line manually.
1. Press @ d A 0 4.
2. Use the cursor navigation keys ({ } ;
') to move the flashing cursor to the appropriate
position.
3. Press E to draw the line.
Draws a tangential line at the specified point of a graph
curve.
T_line(equation, x-value)
Example
• Draw the tangential line of y = x
1. Select T_Line(.
2
2. Enter "x
, 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))
2
at x = 1.
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