HP 32SII - Manual (Page 256)

15–30 Mathematics Programs
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
Example 1:
Find the roots of x 5 – x 4 – 101x 3 +101x 2 + 100x – 100 = 0.
Keys: Display: Description:
W P @ value  Starts the polynomial root finder;
prompts for order.
5 f @ value  Stores 5 its F; prompts for E.
1 _ f @ value Stores –1 in E; prompts for D.
101 f @ value Store –101 in D. prompts for C.
101 f @ value Stores 101 in C; prompts for B.
100 f @ value  Stores 100 in B; prompts for A.
100 _ f %/)
 Stores –100 in A; calculates the
first root.
f %/)
 Calculates the second root.
f %/
)
 Displays the third root.
f %/.
)
 Displays the fourth root.
f L/.)
 Displays the fifth root.
Example 2:
Find the roots of 4x 4 – 8x 3 – 13x 2 – 10x + 22 = 0. Because the coefficient of
the highest–order term must be 1, divide that coefficient into each of the other
coefficients.
Keys: Display: Description:
W P @ value  Starts the polynomial root finder;
prompts for order.
4 f @ value  Stores 4 its F; prompts for D.
8 _ š 4
p f

@ value
Stores –8/4 in D; prompts for C.
13 _ š
4 p f

@ value
Store –13/4 in C. prompts for B.