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From the GRAPH
window
Note:
06 N_line(
From the Calculation
screen
Note:
T_line(
Example
• Draw a tangential 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
tangential line.
3. When the point is set at the tangent point, press
E.
• It is also possible to input the x-value and press
E.
The equation of the tangent line is displayed temporally.
(The equation may include a margin of error.)
Draws the normal line at the specified point of a graph
curve. Draws the orthogonal line of a tangent at the
specified point of a graph curve.
N_line(equation, x-value)
Example
• Draw the normal line of y = x
1. Select N_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. (N_
line(Y1, 1))
Chapter 4: Graphing Features
2
at x = 1.
101
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