Question about Texas Instruments TI-84 Plus Calculator
A) Before drawing function Y1=f(X), R1=F(Theta), (X1=f(T0, Y1=f(T))
you should turn the statistical plots OFF.
To turn statistical plots off
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 the 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.
To make a long story short, you must Uninstall the Transfrm application from memory. The procedure will not erase it, just kick it out of memory.
Graphing functionalities will revert to the native OS
Another potential culprit is the Inequalz App. You recognoze that Inequalz is runnibg if the [ Y=] editor screen shows tabs at the bottom
To uninstall it, do as for the Transfm and select the option that will unload it from memory.
Posted on Feb 17, 2010
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Posted on Jan 02, 2017
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