Section 6: Functions95
Keystrokes Display    
XEQ 
  XEQ _ _    
   
ALPHA RAD ALPHA 
  0.0000    
  Radians mode selected.
3 ENTER  
  3.0000    
  The y-coordinate is entered into the Y-register.
4
  4 _    
  x-coordinate keyed in.
g R–P 
  5.0000    
  Magnitude r.
X Y 
  0.6435    
  Angle θ in radians.
Now convert polar coordinates (8, 120 grads) to rectangular coordinates.
Keystrokes Display    
XEQ 
XEQ _ _    
   
ALPHA GRAD ALPHA 
0.6435    
  Grads mode selected. Displayed result remains from previous example.
120 ENTER  
120.0000    
  Angle θ is placed into the Y-register.
8
8 _    
  Magnitude r is keyed in.
g P–R 
2.4721    
  The x-coordinate.
X Y 
0.6435    
  The y-coordinate.
XEQ 
XEQ _ _    
   
ALPHA DEG ALPHA 
7.6085    
  Returns the HP-41C to DEGrees mode.