Re: Ti-86, ROM 1.3: BUG with function of function!?


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Re: Ti-86, ROM 1.3: BUG with function of function!?



Not true.  The 86, like every TI calculator except the 85, can use function
notation for graph equations.  y1(5) gives y1 for x=5.  y1(x) is just
amazingly redundant, seeing as how x is the variable that's already in y1.
I suspect that is confusing the calculator somehow.  The solution?  Even if
you think y1(x) should work, just forget it and use y1.  No use fighting
over it when there's a way around it.

>As Ray has said, your function is incorrect, though. y2=y1/x is the correct
>one, and it works flawlessly. The question really now is why y2=y1(x)/x,
>which should be interpreted by the OS as y2=(y1*x)/x, which equals y1. But
>the graph incorrectly displays this as if y2=y1/x. That, also, is
definitely
>a bug, which just happened to catch you, Johan.

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