A) Before drawing function Y1=f(X), R1=F(Theta), (X1=f(T), Y1=f(T))
should turn the statistical plots OFF.
To turn statistical plots off
- Press [2nd][Y=] to open the (STAT PLOT) menu.
- Select [4:PlotsOff] and
- Press [ENTER].
- Calculator displays Done
- Restart your graphs.
- Adjust the window dimensions if necessary or use the
ZOOM function to have all graphs displayed.
B) If you
cannot draw more than one function
Usually as soon as you start
entering an expression in the Y= editor
screen, the = sign is highlighted to ensure the drawing of a function.
However, if you have previously used the Transfm
application to draw
dynamic graphs, it takes over the graphing functionalities from
native OS and you can only draw a single graph.
The reason is that
dynamic graphing needs one or two parameters that can be changed during
the graphing process and the graph redrawn with a new value of a
parameter, and you end up with a family of curves differing one from
the other by the values of one parameters. But since the calculator has
space for 10 graphs at most, only one function can be highlighted.
a long story short, you must Uninstall
from memory. The procedure will not erase it, just kick it out of
- Press the [Apps] key.
- Scroll down or up to reach the
- Select it and press [ENTER].
- If that application
was running you will see a new screen that tells you some thing like
- Transfrm App
will revert to the native OS
potential culprit is the Inequalz
App. You recognize that
Inequalz is runnibg if the [ Y=] editor screen shows tabs at the bottom
it, do as for the
and select the option that will unload it from
- Press [Apps]
- Select [ : Inequalz]
- Screen displays INEQUAL RUNNING
- [2:Quit Inequal]
Press [2:Quit Inequal]