MathBits.com Table of Contents

Polar Coordinates
(x,y) → (r,)    OR     (r,) → (x,y)

Let's start by examining the commands used to convert between rectangular and polar coordinates:
Our primary menu of commands is listed under ANGLE.
Press 2nd APPS (ANGLE) to open this menu.


 
 

Change Rectangular to Polar:

 



Option #5: R►P r (  is the rectangular to polar conversion
that returns only the r value.
Format: 
 R►P r (x,y)

Option #6: R►P ( is the rectangular to polar conversion
that returns only the value.
Format:  
RP (x,y)


 
 

Change Polar  to Rectangular:

 


Option #7:  P►Rx ( is the
polar to rectangular conversion that returns the x value.

Format:   P►Rx (x,y)

Option #8:  P►Ry ( is the
polar to rectangular conversion that returns the y value.
Format: 
 P►Ry (x,y)

 

Examples:
1.  Convert to polar form.
We need to find the corresponding (r,) values for the given (x,y) values.

Options #5: R►P r (  and  
#6: R
P (  give:
                                  


NOTE: 

Answer:  (2, 2.618) or

 

Answer:  (2, 150)

 

2.  Convert to rectangular form.
We need to find the corresponding (x,y) values for the given (r,) values. 

Options #7:  P►Rx ( and
#8:  P►Ry (  give:

                                   


NOTE: 

Answer:  (1.732, 1)  or 

Since the stated coordinates are expressed in RADIAN form, set the calculator to RADIAN mode.

 

 

 

 


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