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