Re: y1(value) on TI-85
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Re: y1(value) on TI-85
>Well when you put y1=x^2 then y1 does =x^2
>when you type y1(5) you are actually saying to it x^2*5
>x was equal to .625 on your calc. and (.625)^2 = .390625
>and .390625 * 5 = 1.953125.
>
>----------
>From: Daniel Reed[SMTP:djr@NARNIA.N.ML.ORG]
>Sent: Sunday, October 05, 1997 7:30 AM
>To: CALC-TI@LISTS.PPP.TI.COM
>Subject: 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!
>
>