HP 33S - Page 250

15–30 Mathematics Programs
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
A through E Coefficients of tints of polynomial; scratch.
F Order of polynomial; scratch.
G Scratch.
H Pointer to polynomial coefficients.
X The value of a real root, or the real part of complex root
i The imaginary part of a complex root; also used as are index
variable.
Example 1:
Find the roots of x
5
– x
4
– 101x
3
+101x
2
+ 100x – 100 = 0.
Keys:
(In RPN mode)
Display: Description:
t
P

value

Starts the polynomial root finder;
prompts for order.
5
¥

value

Stores 5 its F; prompts for E.
1
z ¥

value
Stores –1 in E; prompts for D.
101
z ¥

value
Store –101 in D. prompts for C.
101
¥

value
Stores 101 in C; prompts for B.
100
¥

value

Stores 100 in B; prompts for A.
100
z ¥


Stores –100 in A; calculates the
first root.
¥


Calculates the second root.
¥


Displays the third root.
¥


Displays the fourth root.
¥


Displays the fifth root.