50g

Don,
That is what exactly happened to me...
I, too, figured that late last night that I'd stored "a value" in R.  An that why the calc. was forcing me to switch approx. mode.
Pretty weird way of spending Saturday night.  But still happy that I cleared that out my way...
Thanx everybody
Fatih

--- On Sat, 8/9/08, Don Hart <ddhart1@...> wrote:
From: Don Hart <ddhart1@...>
Subject: [50g] Re: Algebraic equations
To: 50g@...m
Date: Saturday, August 9, 2008, 2:16 PM










    
            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

>