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Re: Algebraic equations

2008-08-09 by Don Hart

Ok, a couple of more things I just thought of, and THEN 
I give up. It's just something you should keep in mind 
in checking the things you've already checked.

If you're in a subdirectory and, for instance, have 2.5 
stored in R but this R resides in a parent (or 
grandparent, etc.) directory. The calculator will find 
and use that R in your expressions. So, you might want 
to check the parent directories for R, g, & t

The other thing easily overlooked by a newbie is that, 
while 4 is an integer, 4. is not.

Good luck

--- In 50g@yahoogroups.com, Fatih Can <f_can2003@...> 
wrote:
>
> Don,
> I appreaciate.  Thank you anyway.
> Fatih
> 
> --- On Fri, 8/8/08, Don Hart <ddhart1@...> wrote:
> From: Don Hart <ddhart1@...>
> Subject: Re: [50g] Algebraic equations
> To: 50g@yahoogroups.com
> Date: Friday, August 8, 2008, 11:05 PM
> 
> 
> 
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> 
> 
>     
>             So you have pi*R^2 in A1 and g*t^2/4 in 
A2. And you like multiply them to get pi*R^2*(g*t^ 2/4) 
and then use the SIMPLIFY command? The only way I could 
get the 'approx. mode on?' warning is to have 3.14... in 
place of the pi. But this is in the hp49 (I don't have a 
50g) so maybe there is a difference between the 
calculators. I'll have to let someone else continue 
helping you, as I'm at a loss at this point. Sorry.
> 
> 
> 
> --- On Fri, 8/8/08, Fatih Can <f_can2003@yahoo. com> 
wrote:
> From: Fatih Can <f_can2003@yahoo. com>
> Subject: [50g] Algebraic equations
> To: "hp50g" <50g@yahoogroups. com>
> Date: Friday, August 8, 2008, 9:54 PM
> 
> 
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>  
> 
> 
> My calc. simply doesn't simplify the expressions when 
one of them has a constant but forces to switch to 
approximate mode (It does simplify the expressions as 
long as they don't have constants.)  In this sense it 
doesn't perform the example given in Chap.5 pages 5-2, 
5-3 the way it is supposed to as one of the expressions 
has number Pi.
> am i missing something or  can we  claim that the 
result of that example can't be obtained as shown in the 
guide???
> can someone also try to verify that example?
> 
> if i'm missing something i'll have to hard-reset my 
calc. to return factory settings!!!
> thanx
>

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