Re: y1(value) on TI-85


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Re: y1(value) on TI-85



On Sat, 4 Oct 1997, Roland Bengtsson wrote:
) If i define a function say y1=x^2 i graphs fine.
) if I write y1(5) in the commandline shouldn't it display 25?
)
) It displays 1.953125  .....
y = f(x) when thinking mathematically, and with graphing calculators...
you are defining y, aka f(x), to be x^2
However, if you were to try to perform a function of y, that would erm be
the anti function of f (I think--it doesn't technically have to be a
function at all so I'm not quite sure).
What you want to do is

y1=x^2
                 Done
Eval 5
                 {25}

or, alternately

y1=x^2
                 Done
5->x
                    5
y1
                   25

--
Daniel Reed <n@narnia.n.ml.org>
System administrator of narnia.n.ml.org (narnia.mhv.net [199.0.0.118])
Psychic midget escapes prison--SMALL MEDIUM AT LARGE!


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