Using parametric plots it is possible to plot vertical functions

Example:
Lets plot the equation
X=1
, a vertical line


1Access PLOT Application:
Press
[+/]
and switch plot to
PARAMETRIC
Enter the equation
( 1 , T )



2  HP49 will ask you if you wish
the complex mode on.
Choose
YES



3  The screen will be
like the one beside



4Press
[ERASE] [DRAW]
to see the plot



Ploting Another Vertical Functions
TIP
To plot a vertical plot enter a parametric equation as
(
f ( T )
,
T
)

Example:
Lets plot the equation
Y = SIN( X )
Enter the equation as a complex number
( SIN ( T ) , T)


HP49 will ask you if you wish
the complex mode on.
Choose
YES


It will shows a new screen
with the Parametric Equation and
its Independent variable


Press
[ERASE] [DRAW]
to see the plot.


