50g

Are you using rpn or algebraic mode?

Mick

--- In 50g@yahoogroups.com, "mike" <mpc20@...> wrote:
>
> Are you using rpn or algebraic mode?
> 
> Mick
>
Hello.  I'm using RPN mode.

--- In 50g@yahoogroups.com, "rickwendel763242" <rickwendel763242@...> wrote:
>
> --- In 50g@yahoogroups.com, "mike" <mpc20@> wrote:
> >
> > Are you using rpn or algebraic mode?
> > 
> > Mick
> >
> Hello.  I'm using RPN mode.
>
rightshift (white) math, just below the down arrow.
next (left arrow) 
cmplx

c->r and r->c

if you need to set the soft menu (not the drop down menu)

shout out if u need help with that

I couldn't figure out how to change from the drop down menus to the soft menus.

Here's the procedure I figured out:
Convert from rectangular to polar or viceversa:
1. White Mode button
2. Arrow down to Coordinate System.
3. Select the soft key; Choose
4. Change the mode to the one your converting too.
5. Place your entry in (X,Y) format using parenthesis.  Thats left arrow and second set of parenthesis down.  Use right arrow and comma, to put in a comma between.
6. Press enter.
7. Note: When entering polar form you have to put the angle symbol after you put in the comma.  That's ALPHA, right arrow, 6.

soft menu> hit the mode key, flags then scroll up to flag 117 and toggle
to soft menu.

Cheers Mick

On Sun, 2009-05-24 at 03:24 +0000, rickwendel763242 wrote:
> 
> 
> I couldn't figure out how to change from the drop down menus to the
> soft menus.
> 
> Here's the procedure I figured out:
> Convert from rectangular to polar or viceversa:
> 1. White Mode button
> 2. Arrow down to Coordinate System.
> 3. Select the soft key; Choose
> 4. Change the mode to the one your converting too.
> 5. Place your entry in (X,Y) format using parenthesis. Thats left
> arrow and second set of parenthesis down. Use right arrow and comma,
> to put in a comma between.
> 6. Press enter.
> 7. Note: When entering polar form you have to put the angle symbol
> after you put in the comma. That's ALPHA, right arrow, 6.
> 
> 
> 
> 
>

Soft menus are set with flag -117. Enter -117 and then SF and enter. Or use the flag browser by way of the MODE key.

To do the conversion, set the mode you're converting from using...
PRG -> MODES -> ANGLE
then either RECT, CYLIN; SPHERE

Then enter enter what you're converting from...
e.g. (1,2) in rectangular
and press CYLIN to convert to cylindrical


--- On Sat, 5/23/09, rickwendel763242 <rickwendel763242@...> wrote:

> From: rickwendel763242 <rickwendel763242@...>
> Subject: [50g] Re: How do you convert from Rectangular To Polar and Polar To Rectangular?
> To: 50g@yahoogroups.com
> Date: Saturday, May 23, 2009, 8:24 PM
> I couldn't figure out how to change
> from the drop down menus to the soft menus.
> 
> Here's the procedure I figured out:
> Convert from rectangular to polar or viceversa:
> 1. White Mode button
> 2. Arrow down to Coordinate System.
> 3. Select the soft key; Choose
> 4. Change the mode to the one your converting too.
> 5. Place your entry in (X,Y) format using
> parenthesis.  Thats left arrow and second set of
> parenthesis down.  Use right arrow and comma, to put in
> a comma between.
> 6. Press enter.
> 7. Note: When entering polar form you have to put the angle
> symbol after you put in the comma.  That's ALPHA, right
> arrow, 6.
> 
> 
> 
> ------------------------------------
> 
> Yahoo! Groups Links
> 
> 
>     mailto:50g-fullfeatured@yahoogroups.com
> 
> 
>

Thank you.

The conversion from rectangular to polar and vise versa becomes really simple with the help of a little program that you assign to a key, I have it assigned to the |MODE| key. I'll explain the way a have it in my 50g, I'm assuming you are working in RPN with soft-menus.
The next program toggles from REC mode to CYLIN (or SPHER), since we are working in a plane is like toggling from RECTANGULAR to POLAR.
<<
    IF -16 FC?C
    THEN -16 SF
    END
>>
Once you have this program in Level 1: let's assign it to |MODE| key.
Press: 2 2 |ALPHA||ALPHA| A S N |ENTER|
Now every time you press |left-shift| |ALPHA| |MODE| the 50g change the mode, go ahead and try it, and look how in the top of the screen changes from XYZ to XLZ (L represents the angle symbol).

Now I'll show you how simple is the problem, Let's work with just four decimal places:
Press and hold |left-shift| and then press |MODE| now press |F1| to choose FMT then
press 4 and |F2| to choose FIX.
In the math menu let's choose vectors
Press |left-shift| |SYMB| then and |F1| to choose VECTR.
To convert from REC to POL make sure XYZ shows on top of the screen, if not press |left-shift| |ALPHA| |MODE| .
Lets say you want [3 4] in polar press 3 |space| 4 |F5| to choose ->V2
now toggle the mode |left-shift| |ALPHA| |MODE| , you should have the polar representation in the screen.
To convert from POL to REC make sure XLZ (or XLL)shows on top of the screen, if not press |left-shift| |ALPHA| |MODE| .
Lets say you want [5 L 60] (5 units and 60 degrees) in rectangular press 5 |space| 60 |F5| to choose ->V2
now toggle the mode |left-shift| |ALPHA| |MODE| .

That's a cool program.  Thanks a lot!

I'm glad I could help.

To elaborate on my reply, you don't have to be in the mode you're converting from. Select the form you're converting to and just enter in the form you're converting from.

e.g.
Set CYLIN in the soft menu. Then enter (1,2) as a rectangular. When you press enter, the cylindrical form is put on the stack.

--- In 50g@yahoogroups.com, Don Hart <ddhart1@...> wrote:

>
> 
> Soft menus are set with flag -117. Enter -117 and then SF and enter. Or use the flag browser by way of the MODE key.
> 
> To do the conversion, set the mode you're converting from using...
> PRG -> MODES -> ANGLE
> then either RECT, CYLIN; SPHERE
> 
> Then enter enter what you're converting from...
> e.g. (1,2) in rectangular
> and press CYLIN to convert to cylindrical
> 
> 
> --- On Sat, 5/23/09, rickwendel763242 <rickwendel763242@...> wrote:
> 
> > From: rickwendel763242 <rickwendel763242@...>
> > Subject: [50g] Re: How do you convert from Rectangular To Polar and Polar To Rectangular?
> > To: 50g@yahoogroups.com
> > Date: Saturday, May 23, 2009, 8:24 PM
> > I couldn't figure out how to change
> > from the drop down menus to the soft menus.
> > 
> > Here's the procedure I figured out:
> > Convert from rectangular to polar or viceversa:
> > 1. White Mode button
> > 2. Arrow down to Coordinate System.
> > 3. Select the soft key; Choose
> > 4. Change the mode to the one your converting too.
> > 5. Place your entry in (X,Y) format using
> > parenthesis.  Thats left arrow and second set of
> > parenthesis down.  Use right arrow and comma, to put in
> > a comma between.
> > 6. Press enter.
> > 7. Note: When entering polar form you have to put the angle
> > symbol after you put in the comma.  That's ALPHA, right
> > arrow, 6.
> > 
> > 
> > 
> > ------------------------------------
> > 
> > Yahoo! Groups Links
> > 
> > 
> >     mailto:50g-fullfeatured@yahoogroups.com
> > 
> > 
> >
>

Thanks a lot for your help.