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The problem here is not enough parentheses and expressed operations.

-----Past Traffic-----------------------------------
From: Stuart Moskowitz <smoskow@eis.calstate.edu>
Subject: Re: Graph-TI - sinX and SQ ROOT

On Tue, 6 Dec 1994, Peter Kolbus wrote:

> When in doubt, use parentheses.
>
NO NO!! I used to say this too, but the 82 and 85 (not the 81) give implied
multiiplication with paraentheses higher priority than square roots and
other calculator defined functions.

Try SQRT4(-4)     The three calculators each give a different answer.

Graph Y=(1/2)X  and Y=1/2(X)           yep! they're different.

Stuart Moskowitz
Butte College Math Dept.
Oroville CA  95965
smoskow@eis.calstate.edu


> On 1 Dec 1994, EDWARD L BURROWS wrote:
>
> > I am having a problem evaluating expressions with sinX and
> > square roots. I get DIFFERENT answers for expressions like
> > sinXsq rt3, sinsq rt 3 X, sq rt 3 sin X, sq rt3(sinX), etc.
> > What is the rule? It is NOT OBVIOUS!
> >
> > 




>