Sharp el-9950 - Page 101

100
Chapter 4: Graphing Features
T_line(equation, x-value)
Example
• Drawthetangentiallineofy
=
x
2
at
x = 1
.
1. SelectT_Line(.
2. Enter “x
2
,1)”on
the line.
3.Press
E
.
Note: It is also possible to
specify a function
equationfromY0
toY9ifstored.(T_
line(Y1,1))
04 V_line Draws a vertical line on the graph window
FromtheCalculation
screen
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.
05 T_line( Draws a tangential line at the specified point of a graph
curve.
FromtheGRAPH
window
FromtheCalculation
screen