How to Plot Vertical Functions
Also valid for HP48


Using parametric plots it is possible to plot vertical functions
Example:
Lets plot the equation X=1 , a vertical line
 
1-Access PLOT Application:

Press [+/-]
and switch plot to PARAMETRIC

Enter the equation ( 1 , T )
Writing the equation
 
2 - HP49 will ask you if you wish
the complex mode on.
Choose YES
Choose Complex Mode
 
3 - The screen will be
like the one beside

The Paraqmetric Equation
 
4-Press [ERASE] [DRAW]
to see the plot
Final 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)
Writing the Equation
HP49 will ask you if you wish
the complex mode on.
Choose YES
Choose Complex Mode
It will shows a new screen
with the Parametric Equation and
its Independent variable
The Paraqmetric Equation
Press [ERASE] [DRAW]
to see the plot.
Final PLOT