HP 33S - Page 247

Mathematics Programs
15–27
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
Program Lines:
(In RPN mode)
Description
  
Stores 1 or JK – a
1
/2.
 
  
Calculates sign of C.
  
J.
 


J
2
  
J
2
-– a
2
.
  
  
J
2
-– a
2
+y
0
.
 
C =
02
2
yaJ +−
.
  
Stores C with proper sign.
  
J.
  
J + L.
  
K.
  
K + M.
  
Calculate and display two roots of the fourth–order
polynomial.
  
J.
  
J – L.
  
K.
  
K – M.
Checksum and length: 539D 171
  
Starts routine to calculate and display two roots.
  
Uses quadratic routine to calculate two roots.
Checksum and length: 410A 6
  
Starts routine to display two real roots or two roots.
  
Gets the first real root.
  
Stores the first real root.
  
Displays real root or real part of complex root.
  
Gets the second real root or imaginary part of complex
root.
  
Were there any complex roots
?
  
Displays complex roots if any.