HP 33s - Manual (Page 225)

Mathematics Programs 15–3
Program Listing:
Program Lines:
(In ALG mode)
Description
   Defines the beginning of the rectangular input/display
routine.
  "! % Displays or accepts input of X.
  "! & Displays or accepts input of Y.
  "! ' Displays or accepts input of Z.
Checksum and length: 8E7D 12
   Defines beginning of rectangular–to–polar conversion
process.
  &
º65¸ 
  % 
 ¸8º´
θ8T
 Calculates ) Y X ( 2 2
+
and arctan(Y/X).
º65¸ 
! !  Saves T = arctan(Y/X).
 ' 
¸8º´
θ8T
 Calculates ) Z Y X ( 2 2 2
+ +
and P.

!  Saves R.
 º65¸ 
 !  Saves P
Checksum and length: E230 36
   Defines the beginning of the polar input/display
routine.
  "!  Displays or accepts input of R.
  "! ! Displays or accepts input of T.
  "!  Displays or accepts input of P.
  
º65¸ 
  

θ8T´¸8º
 Calculates R cos(P) and R sin(P).